$50 Back When You Buy APX A1 Carry and APX A1 Full-Size Pistols. But for the average user, like myself, and given the intention of the gun, I dont think it would make much of a difference in terms of putting hits on target under 25 yards. The PDX also utilizes the Maxim Defense SCW Stock system, which limits stock length to 4 (4 inches), and overall (OA) weapon lengh to 18.75 (18.75 inches), when fully collapsed. Skip to main content Skip to search. Maxim Defense Industries, PDX Complete upper, 556NATO, 5.5", Black, AR Rifles. The powder burn rate for the barrel length has to be so slow it is dumping vast amounts out the muzzle. Optimized Personal Defense Weapon kit United States The SCW system adds a mere 4" to the end of the receiver with a full extension of 8.75", providing complete comfort . When youre looking for Maxim Defense PDX ingenuity in a standard AR-15 package, the MD-1505 is your answer. With lessons learned from the development of their MSX-240 suppressor that withstands the rigors of a full-auto 7.62x51mm belt-fed, along with further design insights stemming from their DSX silencer line, last year at CANCON 2022 Maxim Defense finally showed off their latest: the PDX SD. Daniel Defense uses their proprietary Grip-N-Rip, while Maxim employs a Radian Raptor-LT. Maxim Defense PDX. At 100 yards, the PDW . Maxim Defense. New for 2019: Maxim Defense PDX; SHOT Show 2019 Guns: Maxim Defense PDX; First Look: Maxim Defense Integrally Suppressed Ruger MKIV-SD; First Shots: Springfield Armory Saint Victor Pistol in .308 Win. If youre looking for an AR pistol that is small and compact, these satisfy that need. Born of the SOCOM PDW solicitation, the Maxim Defense PDX dominates CQB encounters and puts maximum energy on target. Maxim Defense has expanded its premium line of short rifles to include a suppressed version, the PDX-SD rifle. This is one of the reasons I gravitate toward piston driven rifles with adjustable gas plugs. Lets start with the grip. This is where Maxim Defense made their transition from a firearms parts company into a full-scale firearm manufacturer. At Rainier Arms, you can find the Maxim Defense MDX line, Buffer & Springs, or explore the offer even further. Our Low Price. The PDX SD was designed as a straight-out-of-the-box solution. An indirect benefit of the AR 15 pistol platform is that its great for utilizing a suppressor. Necessary cookies are absolutely essential for the website to function properly. Related Article Best AR Pistol Brace and How the ATF is Viewing Them. Copyright 2023 American Firearms LLC. If you want to get more into the nitty gritty of the ideal zero, see our article in Issue 35, No True Zero.. When reconfiguring your own build, accessories like the Maxim Defense PDW brace feature robust construction and solid attachment for reliable service on demand. Full specifications of the COVID-19 Maxim Defense PDX Pistol below: Born from the SOCOM PDW solicitation, the Maxim Defense PDX is designed to handle the fierce demands of the Tier 1 community. The next size up in the MDX family is the 508. . This PDX uses a direct gas impingement system and operates on a set of very familiar AR-15 style controls. So, overall, the performance of this gun was excellent for its purposes. The PDX from Maxim Defense has proven to be an extraordinarily popular design, but it has never been on the lower end of the firearm price point scale. Get discounts from top brands & our latest reviews! President and CEO of Maxim Defense, Michael Windfeldt, says, The standard way of doing business is picking the rifle, then adding the suppressor adding to the gas pressure problem. Maxim Defense Industries PDX, Semi-automatic SBR, 300 Blackout, 5.5" Barrel, Flat Dark Earth (Arid) Finish, Maxim Defense Hatebrake, SCW Stock System, ALG Combat Trigger, 20Rd MXM-47824Specifications It's a weapon that is based around the Maxim SCW stock system that has a total overall length of 4 inches when closed but extends instantly to a solid, shoulder-mount weapon. All Deals; Today; Categories . The primary difference is that an AR 15 pistol cannot legally have a rifle stock attached to it. The Hatebrake muzzle brake from Maxim does an incredible job of pushing gas downrange, but more on that in a minute. (Video!) Kel-Tec PMR-30 Semi-Auto Pistol 22 Winchester Magnum 4.3 . . Meet the Maxim PDX pistol. Not that the 5.56 round is a heavy recoiling round, but recoil was relatively light regardless. The shorter length of the AR pistol platform, which combines a short barrel with a brace or simply the bare buffer tube rather than a stock, makes the gun very easy to pack into a Vertx backpack or duffle bag. There has been a good deal of debate over whether or not it is legal to shoulder an AR 15 pistol. Handguns; Rifles; . Both offer certain advantages though, and I wouldnt mind having either in the collection. Its not terribly hard though; just pop both takedown pins and pull the upper off from the front. Remember, this pistol was designed for CQB situations, which are within a few yards. Ive ordered some short barrel ammo so will update after a few hundred rounds. Born from the SOCOM PDW solicitation, the Maxim Defense PDX is designed to dominate close quarter encounters and achieve maximum energy on target. The total unloaded weight is just under 5.7 pounds with its 7075-billet aluminum lower receiver. Though similar to the PDX in size and capability, the PDX has a MILSPEC forged receiver and a different handguard. The PDX - which is just 18.75 in. Plugging data into our ballistic calculators, using plain-old Wolf 124-grain FMJ zeroed at 100 yards the drop at 200 yards was just around 10.5 inches, but it definitely drops precipitously from there. The MD-1505 was engineered to bring our top-tier PDX package to an even more affordable price point. . The PDX - which is just 18.75 in. As low as $149.92. Remember, at least half of flash produced has a direct correlation with ammunition selection and of course, the only thing consistent about Russian ammunition is inconsistency. Save my name & email in this browser for the next time I comment. I will say that I think the trigger pull is lighter and the break a little cleaner on the PDX. As S&W moved all major operations of Gemtech Suppressors to Massachusetts, employees that didnt want to relocate across the country would be let go. Some of their stuff is kind of OK, but I can do better for quality, price, and fit/function with other products. Both guns were a ton of fun to shoot. Therefore, AR 15 pistols are still classified differently than SBR rifles. Going from a 16-inch barrel down to a common pistol length such as 10.5 inches makes the gun substantially more portable and maneuverable. While other companies are working on retrofits (and Maxim is doing some of that themselves), Maxim took a different approach here. 9.5 difference. The stock of the PDX appears very similar to Maxims traditional PDW stock options, but there are some significant deviations. If you're looking to be a, The new 6.8x51mm cartridge adopted by the US Army. Maxim Defense Industries, PDX, Semi-automatic SBR, 300 Blackout, 5.5" Barrel, Flat Dark Earth (Arid) Finish, Maxim Defense Hatebrake, SCW Stock System, ALG Combat Trigger, 20Rd Choose Options Quick view The H3 buffer is shorter and heavier, allowing for a slight delay when firing and aids in BCG longevity. Fuggedaboutit. This is the Maxim Defense MukWerx facility, and its remoteness ensures no one will inadvertently come across what theyve been working up. The PDX comes equipped with Maxim's HATEBRAKE muzzle booster. Seriously? Caribou Media West, LLC Lets discuss the benefits of owning and using this platform. 10 longer OAL would make this the same length as an AUG so I dont know that Id put these in the same ballpark. At the heart of the PDX is the newly developed Maxim SCW stock system. Guns Listing ID: 382623. That was not unexpected but worth noting if you want to shoot higher volumes. Sure, you can play mucky muck with different buffer weights, but you dont have to. You need the right team, and someone else inadvertently gave Michael Windfeldt of Maxim the right ones. JavaScript seems to be disabled in your browser. Other Maxim Defense Pdx for Sale. Its seriously small, and the next thing youll notice is exactly how fat the silencer section is. Id think 5.56 would have a slightly better BC but dont know that itd make a ton of difference at range. When it comes to pistol-braced, PDW-style firearms, two of the undisputed names at the top are Maxim Defense, with itsPDX, and Daniel Defense, with its DDM4 PDW. Settings Maxim Defense PDX 5.56 NATO - FDE remove SCCY, CPX-2, Double Action Only, Compact, 9MM, 3.1"Barrel, Polymer Frame, Duo-Tone Finish, Red Dot Sight, No Manual Safety, 10Rd, 2 Magazines WARNING remove GSG-16 Carbine 22 LR w/ Faux Suppressor remove CP33 .22 LR remove SAINT VICTOR SBR 5.56 AR-15 RIFLE remove Glocks N' Roses Glock 43 remove; Image But the Hate Brake did an excellent job of pushing the gas and concussion forward. BARREL LENGTH: 5.5 inches The grip on the DDM4 PDW is so comfortable, and these grips are something that Daniel Defense has become known for over the years, among other things. This also assists in reducing recoil. Washington A 38-inch ratchet is all you need to crank this down. MUZZLE THREADS: 5/8-24, 1/2-28 HK height rail for a more rigid upper receiver. The Maxim Defense PDX in its short 18.75 configuration is smaller than the MK18, about the length of an MP5k with the stock out, but is retaining velocities closer to that of an M4/AR15 platform. The upper and lower actually push apart because of the unique buffer spring system. Get Guns.com offers and news!! Maxim Defenses MD-1505: A PDX Done AR-15 (ish), Though similar to the PDX in size and capability, the PDX has a MILSPEC forged receiver and a different handguard. The Hatebrake kept the PDX shooting flat. MD is well aware that affordable is an extremely subject term. As low as. Compare specifications of Maxim Defense PDX 223/5.56 MXM47803 and Palmetto State Armory 2A Armament 223/5.56 516446379. . Increased reliability due to included HATEBRAKE As for other controls, an ambidextrous magazine release and standard AR bolt catch/release lever are standard and topped off with a Radian ambidextrous safety selector. In the specific case of the MD-1505 vs. PDS, it is more affordable. But its not just about barrel length. they dont cost that much anymore Maxim Defense has officially jumped from the PDW stock market to the PDW market itself. Maxim Defense Pdx 505-sps. But opting out of some of these cookies may have an effect on your browsing experience. Those who will immediately react negatively to the MSRP, know this: Maxim Defense has never sacrificed quality for a reduction in cost. Otherwise this thing hasnt missed a beat. Looking at the PDX, the compact size immediately draws you in. Along the same lines, the Hate Brake, a gas booster and linear compensator/flash hider can also be taken down and assembled with the same 38-inch ratchet. 2504 Auburn Way N. View Details Maxim Defense Hate Brake Stainless DLC - Round . Besides the comfort factor, I also felt like it just stuck to the hand better. This is a sleek 18.75-inch semi-automatic pistol, or SBR, depending on how you want to configure it. Of course, their first rifle falls directly inline with what we know about Maxim Defense: The PDX PDW; one short enough even the classically stubby armed T-Rex can finally use. is the ultimate choice for when concealment and personal defense is non-negotiable. Another big difference I noted about the guns right away was that the PDX has an adjustable gas block, whereas the DDM4 PDW is more of a standard low-profile gas block. Something to keep in mind is that you cant shotgun the Maxim Defense PDX open like a normal carbine due to the particular buffer/BCG combination. Second place is now a long way away. dominates in close-quarter encounters and achieves maximum energy on target without sacrificing accuracy at distance. $2,299.00 (Save up to 10%) Price. That soft-touch overmolding is almost stickier without being sticky somehow. Back in 2019, Maxim Defense won RECOILs Best of SHOT award and also graced the cover of RECOIL Issue 41 when they released the PDX, a short 5.5-inch barreled PDW with an overall length of 18.75 inches and offered in 5.56mm, .300BLK, and our favorite in this form 7.62x39mm. At your request we will: provide a full refund, exchange for a similar item, maintain a back-order and fulfill the order when available. Seriously. The bore is bright and the rifling is sharp, but could use a good cleaning and lubrication. Save my name, email, and website in this browser for the next time I comment. The difference lies in the application of the National Firearms Act of 1934. They are both a ton of fun to shoot at the range, so you cant go wrong with either of these choices. The Maxim Defense PDX SPS is the culmination of years of research and development to create the best available compact PDW style firearm. Plus, I really enjoyed the way the Hatebrake performed. Maxim Defense PDX 5.56 NATO 20+1 Round Semi Auto AR Pistol, Black - MXM47803. If further tweaking is needed, there are still some options. What makes us still classify the Maxim Defense PDX SD as an integral is that the silencer was specifically designed for the gun, and the gun specifically for the silencer theyre a system and need to work together in order to work at all. Never been impressed with Maxim Defense products. The Maxim Defense PDX, which is now chambered in .300BLK, 5.56 NATO, and 7.6239, had its genesis in USSOCOM. Rainier Arms on YouTube. ***10mm with Glawk mags has entered the chat***. Editor of CONCEALMENT Magazine and Features Editor for the RECOIL Magazine Group, Dave Merrill has a particular passion for foreign weapons and concealable carbines. be a version available for most conceivable needs. DESCRIPTION. Popping plates at various ranges was effortless. A. The PDX SD is so properly balanced and the gas so finely tuned it shoots like a high-end competition gun with a bi-gassed brake on the end, except its shorter than two soda bottles and is hearing safe. For increased comfort and versatility every MD-1505 features our free-floating Slimline Handguard. I would have loved to get a PDX chambered in .300 AAC to make it more apples to apples, but it just wasnt in the cards. The PDX is also available in 5.56 NATO and 7.62x39mm, whereas .300 AAC is the only caliber for the DDM4 PDW, Both have flared magwells for easier magazine changes. I always thought maxim defense have some great looking guns and it is nice to see the price point reduced with the new line. This is an ultra-compact system. SDS Imports 1911A1, Metal Frame Pistol, Full Size 9mm, 5" Barrel, Steel, Black, Fixed Sights, Manual Thumb Safety, 9rd . It is relatively lightweight, concealable, and chambered in great fighting calibers, namely 5.56 NATO, .300 Blackout, and 7.62x39mm. POD-209275, Home Magazine Issue 41 Review: The Maxim Defense PDX, This article originally appeared in RECOILIssue 41. Would like the target download. It is mandatory to procure user consent prior to running these cookies on your website. And Maxim picked them up. The firearms industry is continually saturated with one trend after another due to the ongoing development of new platforms and upgrades to existing platforms. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. All of which improve overall performance in short barrel pistols and rifles. MSRP only a few 100s more then this, and INCLUDES the 3x Swarovski donut of death optic. Per the manufacturer: The Maxim Defense PDX U.R.G is built to handle the fierce demands of the Tier 1 community and designed to install on any Mil-Spec lower receiver. The American Firearms Guide to Shotgunning. Rainier Arms on Google Also similar to some suppressors, youll experience some amount of free bore boost. That said, the .300 did produce more recoil, but I dont think it was solely the caliber at play. Short, suppressed guns are far more prone to gas port erosion than their full-size brethren, and the jet porting means youll get far more life out of a barrel before it starts overgassing like crazy. bear creek arsenal has billet 8.5 inch pistol complete uppers with mlok rail and nitrided bcg for 225 that run like a top and are 10 inch steel plate accurate at 300 yards with tula and a red dot Again, juice vs squeeze. This website uses cookies to improve your experience while you navigate through the website. Just dial it down when back pressure increases. Its an exemplary case for 300 Black admittedly. The magazine well is also nicely contoured and flared to help with quick reloads. The rail is slightly elevated to place sights a little higher, aiding in quick sight picture access. Capitol Armory: Simplest Way To Buy A Suppressor? That said, quality speaks for itself. That said, quality speaks for itself. We started with Mk1, then Mk2, and Mk-god-only-knows before you see whats here today. While it's true that the gun accepts all standard AR-magazines it only ships with a single 20-round magazine, so that has been listed as the standard capacity for the gun. I shoot enough of them every year, but Id rather be on the pistol range. Maxim Defense spent the following years developing a fix for this next part of the problem making it more stealthy with all the blast and gas. come on Your favorite AR trigger will also work, though since the PDX ships with a Geissele SSA-E as standard, we doubt youll want to be playing with that anytime soon. Putting together a functional production PDW requires more than just slapjacking parts together from Brownells at least if you want to make your mark. Need Help?service@guns.comCall (866)582-4867, PO Box 1131 13800 Nicollet Blvd Burnsville, MN 55337 2023Guns.com. Traditional Rifling: Which is Better? Barrel Length: 5.5". In the specific case of the MD-1505 vs. PDS, it. Not because it works better with a suppressor, but because the additional length of the suppressor body has less of an impact on overall length. In the past several years one particular platform that has exploded in popularity is the AR 15 pistol. The amount of gas flow back through the barrel is about equal to the average silencer. I found this to be true not only when I was shooting the gun but when I visited Maxim Defense to tour their facility and saw shooters far more capable than me shooting. Wow! Be sure to follow us onFacebook,Instagram, andLinkedInfor exclusive content and deals. Its mission is more in line with the old World War II M1 or full-auto M2 carbines. A box of potatoes and another of onions in front of a large rapid prototyping machine belies the rural origins. I know that sounds absurd, but ATF regulations are hardly a place to look for logic. But when compared to the patented grip from Daniel Defense, its not even close. Click Here to get your pack of 50 Print-at-Home targets when you subscribe to the RECOIL email newsletter. That said, Im not a regular AR shooter. An AR-15 rifle with a 16-inch or longer barrel has no problem generating velocities approaching 3,000 feet per second. Federal Power-Shok Ammo 12 Gauge 3" Rifle ProMag FN Five-seveN 30 Round Polymer Mag HK VP9 Optics Plate #2 - Trijicon RMR / H Maxim Defense PDX 7.62x39 Pistol No Brace, Maxim Defense PDX 300 Blackout Arid Pistol No Brace, Maxim Defense PDX 300 Blackout Pistol No Brace, Maxim Defense PDX 7.62x39 Arid Pistol No Brace, Maxim Defense PDX 5.56 Arid Pistol No Brace, Maxim Defense 300 Blackout 190 Grain Subsonic, Maxim Defense PDX Kit 300 Blackout Arid Brace, Oakley 50-Snake Dagger T-Shirt Athletic Heather Grey Medium, Overwatch Precision TAC CZ P10 Black / Gold. We'll assume you're ok with this, but you can opt-out if you wish. Terms and Conditions and Privacy Policy. All Rights Reserved, Maxim Defense: Tiny but Mighty PDX AR Pistol. Needless to say, the PDX SD has even more custom work than the original PDX, with the heaviest lifting taking place in the balance of size, sound, and reliability. With the SCW stock, SCW brace, and SCW pistol system options, there should now be a version available for most conceivable needs. Were reader-supported, which means we may earn a small part of the sale from links to any products or services on this site. We use cookies to improve your website experience. The PDX dominates close quarter encounters and achieves maximum energy on target. We tested accuracy out to 100 yards, which is probably the maximum distance for this pistol for most uses. Maxim Defense MD11 AR Pattern 308 Win Semi Auto Ri Maxim Defense SBA 5.56 NATO Ammo 20 Rounds 55 Grain TUI Lead Free. This allows for easier access to the safety selector while the stock is fully collapsed, one of our minor bitches about the legacy Maxim Defense PDW stock. Compare specifications of Maxim Defense PDX 223/5.56 MXM47803 and Maxim Defense SPS 505 PDX 223/5.56 MXM-50802. Maxim Defense MDX .300 Blackout, 8.5" Barrel, CQB Brace, Arid, 30rd. Pick your caliber (7.6229, 5.56 NATO, 300BLK) Barrel length (5.5, 8.5, 10.3 inches) Handguard Silencer or Brake (Hate Brake or HeartBreaker Silencer). Maxim Defense PDX 5.56 NATO 20+1 Round Semi Auto AR Pistol, Black - MXM47803. We took the guns out to 25 yards, put a red dot on top of each, and had no issues punching holes in the center mass of IPSC-style targets. CMG West, LLC If I bought a PDX, I would certainly make this upgrade. While not impossible to get, the $200 tax stamp takes a long time to acquire (upwards of a year in some cases), requires you to pay an additional tax, and NFA weapons such as the AR 15 pistol are more heavily regulated than regular rifles. Maxim Defense Industries firearms, firearm parts, and accessories for sale online. Firstly, the upper receiver of the PDW is contoured to allow for a reduced width between the stock rods, and importantly, it brings the rods slightly higher, relative to the receiver itself. More on that in a minute. Therefore, an SBR rifle comes with the hassle and expense of being classified as an NFA weapon. The PDX Kit comes with everything you need to turn your lower receiver into a Maxim Defense PDX. It has an integrated bolt-carrier group, or BCG, with interchangeable buffer weights that greatly enhancethe guns flexibility. The very first shot felt too light, like a misfire of a rifle that didnt properly cycle. The ballistics of 5.56 between those barrel lengths is significant to say the least. is designed to handle the fierce demands of the Tier 1 community. Stay in the know. At just 18.75" in overall length, the PDX delivers groundbreaking power and performance in a . Some states do not restrict long guns in vehicles for those with a carry permit, so the AR pistol has an advantage here. Additionally, instead of having to use a carbine tool or some sort of thread locker to secure the short receiver extension, a simple 38-inch ratchet is used to torque everything down via a convenient socket hole on the butt. Lets break them all down here (and theres more than you thought)! They have now launched the new "MD-1505" to offer a more affordable AR-15-style PDX. The Ultimate Firearms Destination for the Gun Lifestyle, 2023 Recoil Magazine Back in 2019, Maxim Defense won RECOIL's Best of SHOT award and also graced the cover of RECOIL Issue 41 when they released the PDX, a short 5.5-inch barreled PDW with an overall length of 18.75 inches and offered in 5.56mm, .300BLK, and our favorite in this form 7.62x39mm. We took their new, Some of the less common but still awesome CCWs! . This category only includes cookies that ensures basic functionalities and security features of the website. Potatoes, onions, and rapid prototyping machines. This cone-shaped booster pushes the flash signature, gas, and concussion forward and away from the operator. If you take their numbers and plug them in its like shooting a .357 Magnum with factory ammo at the muzzle. 98002. You also have the option to opt-out of these cookies. In fact, its for this reason that we decided on this steel-case eating commie cartridge stubby carbine to base our review on instead of more traditional calibers. Since you can readily find them for around $25, it seems like a great upgrade. Making an AR. What Is .277 Fury: Basics, Ballistics, & Army Adoption, Any Which Way You Can: Griffin Armaments Bold New DUAL-LOK Family of Suppressors, The Unsung Heroes: Top 9mm Pistols For EDC, Best 9mm 1911 Pistols (That You Can Actually Afford) [2023], United States State Department Bans Strelok Ballistic App. Explore and compare prices from other vendors. You may be scratching your head at the 20+1 capacity from the PDX. Check out ourDAILY DEALS pagefor industry deals and discounts. But first,. Born from the SOCOM PDW solicitation, the Maxim Defense PDX U.R.G. It's a small, easy to handle AR-pattern firearm that uses either Maxim's superb PDW brace in the pistol model or a collapsible stock when sold as a short-barrel rifle. This all adds up to more options than were willing to kick out in this article and more options is more better for consumers. But first, lets talk about the manufacturer, Maxim Defense Industries. For the best experience on our site, be sure to turn on Javascript in your browser. One major difference between the PDX SD and what wed normally call an integral is that the silencer unit itself can be removed. Auburn We do not sell or share your information with anyone. This is much harder than it looks, especially when everything from the barrel to the bolt carrier to the buttstock add additional variables to contend with. Pop off the Hate Brake, thread on a can, and youll more than likely be totally good to go. The innovation starts right at the muzzle with the Maxim Defense patented Hate Brake muzzle booster. The Maxim fed on a steady diet of 5.56 from Federal American Eagle and the DDM4 PDW ate up all the Barnaul I could throw its way. Suppressor Enhancement: Making A Can Quieter, Best AR-15 Charging Handles: Ambi, Suppressor Ready, & More [2023]. A combination of new product designs and some not-so-popular statements from the ATF have propelled these firearms into mainstream use. This makes for an incredibly flat-shooting firearm, which was especially evident when shooting rapidly. Maxim Defense made a high-quality gun with a specific purpose in mind. Takedown is slightly different than normal, but nowhere near difficult. Both performed flawlessly in the PDX. ALG boasts that it is similar to the QMS but it is sharper, and the grittiness of the stock trigger pull has been removed while the traditional reliability of a stock trigger remains. The trigger pull weight is approximately 5.5 pounds. Why? Best Price: $2096.48 See Deal Last Updated: 01/20/2023. Shopping with us is absolutely safe - you never have to worry about credit card safety when shopping here 2023 Copyright, entire contents by CTD, Inc. Cheaper Than Dirt! DR Exclusive Video: HK416C (also written HK 416C) "Ultra Compact Assault Rifle" SBR/PDW (Short Barreled Rifle/Personal Defense Weapon) Fired on Full-Auto at NDIA Infantry Small . All rights reserved. Looking for some last minute inspiration for that special someone, check out YETI's Valentines gift guide, it's full of great gift choices. This gun was designed specifically to meet the needs of Tier 1 military operators for CQB situations as a personal defense weapon with serious teeth. When you consider the roughly 5.5" difference in barrel lengths between the two platforms, that works out to a velocity reduction of about 45 feet per second per inch of reduced barrel length. Rainier Arms specializes in high-end AR15 parts, AR15 accessories, AR15 grips, AR15 stocks, AR15 uppers, AR15 lowers, AR15 barrels and much more Maxim Defense M-RAX Attachment Rail - FDE, Maxim Defense PRS 6.5 Creedmoor Suppressor, Maxim Defense Ruger MKIV-SD .22lr Integral Suppressed Pistol, Maxim Defense MDX 510 7.62x39 Mil-Spec Complete Upper, Maxim Defense MDX 505 PDX 5.56 NATO SBR - 5.5" Urban Grey, Maxim Defense MDX 505 PDX SBR - 5.5" Black, Maxim Defense MDX 505 PDX Mil-Spec Complete Upper - 5.5" Arid, Maxim Defense MDX 505 PDX Mil-Spec Complete Upper - 5.5" Black, Maxim Defense Hate Brake Stainless DLC - Round, Maxim Defense Hate Brake Stainless DLC - Octagon, Maxim Defense MDX 508 5.56 Mil-Spec Complete Upper - 8.5", Maxim Defense M-RAX Attachment Rail - Black. The MD 1505 offers 3 different chamber sizes, including 5.56mm NATO, . While the 5.5-inch PDX is the premiere rifle, by the time this article hits print these will be available in both 8.5-inch and 10.3-inch configurations. 5R Rifling vs. This compact system is extremely well made and well thought out. I didnt push past 25 yards or do any sort of accuracy testing because I dont really see that as a use case for either gun. Eventually we pull to a stop outside of a regular-looking steel building on a small family farm. Those who will immediately react negatively to the MSRP, know this: Maxim Defense has never sacrificed quality for a reduction in cost. The handstop is also different on each gun. Rapid deployment, purpose driven materials, and the functionality you need, the Maxim Defense SCW Stock is simply the shortest, most thought out, versatile, and durable SCW stock on the market. My first reaction was a mix of goosebumps and exclaiming, Holy sh*t!. 12pm-6pm CST Mon At the rear, the MD-1505S is equipped with our SCW Stock for the ultimate in compactness, comfort, and versatility. Both . . Before we dive into some of the smaller and more intricate differences, lets take a look at how these two guns differ in terms of specs.