maxim defense pdx full auto maxim defense pdx full auto

The triggers are also different on each gun. Optimized Personal Defense Weapon kit The take-down is easy and similar to other ARs, with the exception that the sequence of removing the pins is probably easiest if you pull the front pin first and then the back pin. The latest to be announced is the Maxim Defense MD-1505 which the company announced as having the Maxim Defense PDX ingenuity in a standard AR-15 package and bringing it to a more affordable price point that those looking for the PDX design can settle for. Maxim Defense has officially jumped from the PDW stock market to the PDW market itself. All of which improve overall performance in short barrel pistols and rifles. MUZZLE THREADS: 5/8-24, 1/2-28 Maxim Defense PDX 5.56 NATO 20+1 Round Semi Auto AR Pistol, Black - MXM47803. 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. WEIGHT: 5 lbs One note that comes to mind is the small size, but thats all about remembering the purpose of this pistol. Some might argue that there is a big difference here, but both seemed fairly standard to me. Clear as mud. Everyone raved about how great it was to shoot 7.62 rounds form a 5.5 barrel. That soft-touch overmolding is almost stickier without being sticky somehow. If there is one stone to throw at them, its the price, with both of them commanding an MSRP of over $2,200. Maxim Defense SBA 5.56 NATO Ammo 62 Grain TUI Lead Maxim Defense SBA .300 AAC Blackout Ammunition 20 Round Box 115 Grain TUI Projec Maxim Defense SBA .300 AAC Blackout Ammunition 20 Maxim Defense MD9 CPS 9mm Luger AR-15 Pistol Black, Maxim Defense MD9 CPS 9mm Luger AR-15 Pistol Arid, Maxim Defense MD9 CPS 9mm Luger AR-15 Pistol Gray, Maxim Defense MD11 AR Pattern 308 Win Semi Auto Rifle. JavaScript seems to be disabled in your browser. 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. 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 very first shot felt too light, like a misfire of a rifle that didnt properly cycle. 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. Washington Besides the comfort factor, I also felt like it just stuck to the hand better. Buy Maxim Defense PDX Pistol 7.62x39 Black: GunBroker is the largest seller of Semi Auto Pistols Pistols Guns & Firearms All: 970202935. . 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. HK height rail for a more rigid upper receiver Popping plates at various ranges was effortless. But first,. It dominates close quarter encounters and achieves maximum energy on target. Looking forward to putting a can on it. Put email address in and clicked the Subscribe button and nothing happens. It may be a knock for some people that the gun only ships with a single magazine, but at least its a steel mag. While other companies are working on retrofits (and Maxim is doing some of that themselves), Maxim took a different approach here. Maxim Defense MDX .300 Blackout, 8.5" Barrel, CQB Brace, Arid, 30rd. Shorter barrels work particularly well within vehicles or confined spaces. 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. 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. HK height rail for a more rigid upper receiver. There were giggles all around whenever it was shot on full auto. We use cookies to improve your website experience. 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. Stay in the know. This is where Maxim Defense made their transition from a firearms parts company into a full-scale firearm manufacturer. Military tested Rapid Deploying PDW stock, FUNCTIONS: If you're itching for a great 9mm 1911 that won't, Used by millions of sport shooters around the world, the Strelok Ballistic app won't be, 220gr 300 Blackout Ammo from Atlanta Arms, New: Mechanix Fingerless Covert Tactical Glove, Become More Stable With Area 419's New RailChanger X, Maxim Defense PDX SD: Short, Silent, & Soft Shooting [Review], Suppressors: RECOIL Magazines Complete Guide To Buying, Maintaining, And Shooting With A Silencer. This 556 feeds every round Ive put thru it including a 60 round drum full of bulk reloaded ammo. Daniel Defense uses their proprietary Grip-N-Rip, while Maxim employs a Radian Raptor-LT. Save my name & email in this browser for the next time I comment. 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 . SPECIFICATIONS: Calibers: 5.56 NATO, .300 BLK, and 7.62x39mm. I think thats the way they prefer it to be. The contoured upper receiver reduces the width between the stock rods as well as allowing the rods to be positioned higher on the receiver. At the heart of the PDX KIT is our Maxim SCW system. Handguns; Rifles; . Griffin Armaments has a whole new way of looking at suppressors. Note: Image may not be an exact representation of the actual item. Military grade materials [6Al-4V Titanium, 17-4 Stainless Steel, 7075 and 6061 Aluminum] SCW Buffer-carrier. Maxim Defense Pdx 505-sps. On a full-length rifle, that extra length and weight of a suppressor make a big difference in the handling and maneuverability of the weapon. Capitol Armory: Simplest Way To Buy A Suppressor? Finally! At just 18.75" in overall length, the PDX delivers groundbreaking power and performance . Therefore, the argument has always been, is an AR 15 pistol a pistol if it can be shouldered like a rifle? Maxim Defense even came out with a Covid-19 version of the PDX, check it out. 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. This makes for an incredibly flat-shooting firearm, which was especially evident when shooting rapidly. 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, Both employ the Maxim Enhanced SCW Buffer system and the patented Maxim Defense CQB Pistol Brace, Both pistols are available in .300 AAC. (Video!) Description: The difference lies in the application of the National Firearms Act of 1934. Potatoes, onions, and rapid prototyping machines. The gas block has a threaded jet port which allows for custom tuning of the gas flow. The price point will not be for everyone. After shooting a few magazines through the PDX, the barrel became very hot. That shouldnt come as a surprise. This gun was designed specifically to meet the needs of Tier 1 . 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 The BCG is slightly shorter than standard and boasts a nickel-boron bolt. With a 5.5 barrel vs the AUG 16 barrel, most will be wondering if the juice is worth the squeeze. , which reduces recoil, decreases flash signature, pushes gasses, and concussion wave downrange away from the operator. **The Maxim PDX U.R.G ships with your choice of a Standard Mil-Spec BCG to be . 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. they dont cost that much anymore Several letters from the ATF have both clarified and confused the issue. This website uses cookies to improve your experience while you navigate through the website. 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. This is one gorgeous AR-style pistol. give me a break. The innovation starts right at the muzzle with the Maxim Defense patented Hate Brake muzzle booster. This pistol has a barrel length of 5.5 inches and an overall length with closed brace of 18.75 inches. So, overall, the performance of this gun was excellent for its purposes. Notify me of follow-up comments by email. Born from the SOCOM PDW solicitation, the Maxim Defense PDX U.R.G. At the rear, the MD-1505S is equipped with our SCW Stock for the ultimate in compactness, comfort, and versatility. Without a traditional rifle stock, this platform is legally considered a pistol and treated as such. Features of this pistol includes a picatinny optics rail, m-lok . The stock of the PDX is the proprietary Maxim SCW stock system, which reduces the stock length to 4 inches. The MD15 comes in several different flavors, but for this article, we're . ***Steyr AUG NATO w/3x Swarovski optic and 60rd Magpul GenM3 drum mags has entered the chat*** Given the sterling reputation of each manufacturer, reliability should never be an issue as long as you take care of your gun. Seriously. 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. This category only includes cookies that ensures basic functionalities and security features of the website. Maxim Defense Industries manufactures rifle-style pistols, uppers, stocks, braces, and accessories for those who will not compromise on CQB performance. Maxim Defense Industries, PDX Complete upper, 556NATO, 5.5", Black, AR Rifles. Increased reliability due to included HATEBRAKE. A Tavor would reduce that down to 8 longer and it seems as if you can get that down to 5 difference with an SBRed version. Deals 15% Off Range Gear - Guns . Weve reported in the past that the U.S. Military is taking steps toward an all-suppressed army, and theyre starting with SOCOM. The rail is slightly elevated to place sights a little higher, aiding in quick sight picture access. The PDX SD is a special-purpose rifle, required to be very small and hearing safe.. Meet the Maxim PDX pistol. This is merely the start of the Maxim Defense MDX Battle Rifle System. The PDX-SD is said to be designed around the suppressor, which is hearing-safe when firing M855, reading 138 dB during testing. Technical Specifications Short Recoil/Delayed Blowback operating system 8.5" Cold Hammer - Forged Chromoly steel barrel User-configurable rail system - options include Picatinny segments, sling adapters, polymer rail panels, offset mount, etc LWRCI Rail Panels at 3, 6, and 9 with a handstop on the 6 o'clock rail Reversible, non-reciprocating, folding charging handle US-manufactured UMP . Maxim MDX:SP 505 PDX-300 BLK-URBAN. You have entered an incorrect email address! LENGTH: 14 inch upper 4 inch SCW stock (collapsed) Pop off the Hate Brake, thread on a can, and youll more than likely be totally good to go. and theyre selling them for 1800 Each PDX gas block has a threaded jet port inside it which allows one to custom tune their gas flow its a lot like the gas plug used in SCARs, though its inside the gas block and not the barrel itself. The aluminum handguard is compatible with M-LOK accessories but is also designed to accept the proprietary Maxim M-Rax Picatinny rail, which is spring-loaded piece that assists with placement. Tinkering with, and then full-on manufacturing silencers for more than five decades, you can find Daters DNA on many modern designs, and his fingerprints are all over the PDX. QuickView Maxim Defense AR-15 CQB Stock With JP Gen 2 Silent Capture Spring Standard Weigh. But having experienced previous PDX SD prototypes, the thought didnt even cross the mind. This website uses cookies to improve your experience. Designed to be installed on any Mil-Spec lower receiver, SPECIFICATIONS: The ballistics of 5.56 between those barrel lengths is significant to say the least. Be sure to follow us onFacebook,Instagram, andLinkedInfor exclusive content and deals. This all adds up to more options than were willing to kick out in this article and more options is more better for consumers. The store will not work correctly in the case when cookies are disabled. The handstop is also different on each gun. 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. M-slot compatible handguard. View Details Maxim Defense Hate Brake Stainless DLC - Round . No subcaliber carbine here, the Maxim PDX will be available in three calibers: 5.56, 300BLK, and somewhat of a surprise, 7.6239. 45 Auto Rim; 45 GAP; 45 Long Colt; 45 Schofield; 45 Special; 45 Super; 45 Win Mag; 45-70 Gov; 450 AutoBond; 450 Bushmaster; 450 Short; 454 Casull; 455 Webley; 460 . Details; SKU: 771894: Brand: Maxim Defense: Model Number . United States $2,299.00 (Save up to 10%) Price. More on that in a minute. 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. But it's not just about barrel length. These cookies will be stored in your browser only with your consent. Looking at the PDX, the compact size immediately draws you in. Maxim Defense MD15 Rifles. So, then they [DoD] ask for a lower-flow suppressor. Subscribe to our email list and get exclusive access to promotions, sales events and more! and what you get Required fields are marked *. Dealers must buy through Distribution. 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. If you can pull a gas block and rotate a wrench, you can swap out gas jet yourself. (Photo: Seth Rodgers/Guns.com). All in all, if youre looking at multiple calibers and configurations from Maxim Defense MDX Battle Rifle System, it probably exists. Today a Maxim Defense Pdx will cost you an average of $2153.44 which is $87.94 lower than the 12-week average price. Sure, you can play mucky muck with different buffer weights, but you dont have to. FEATURES: BARREL LENGTH: 5.5 inches So how can there be such a thing as an AR15 pistol? Compare specifications of Maxim Defense PDX 223/5.56 MXM47803 and Maxim Defense SPS 505 PDX 223/5.56 MXM-50802. Since my DDM4 PDW is Certified Used, someone swapped out the included handstop for a UTG angled foregrip. Reassembly is exactly the same, but in reverse. 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. When youre looking for Maxim Defense PDX ingenuity in a standard AR-15 package. Get Guns.com offers and news!! Maxim Defense has expanded its premium line of short rifles to include a suppressed version, the PDX-SD rifle. Meet the Maxim PDX pistol. Maxim Defense SPS 505 PDX 5.56 NATO, 5.5" Barrel, Urban Gray, M-LOK, Hatebrake, ALG Combat Trigger, SCW Pistol System, 20rd . Those who will immediately react negatively to the MSRP, know this: Maxim Defense has never sacrificed quality for a reduction in cost. Maxim Defense made a high-quality gun with a specific purpose in mind. MUZZLE VELOCITY 5.56 NATO, 62gr: 1965 FPS avg. Speaking with the reps, they said part of the requirement for this gun was that it shoot . Chambered in 7.62X39MM, 5.5" barrel with threaded muzzle device, MLOK free float handguard, optics ready top rail, dust cover, forward assist, manual safety, textured pistol grip, 20rd magazine, and single point rear pistol buffer assembly. $2065.50. 12pm-6pm CST Mon Though similar to the PDX in size and capability, the PDX has a MILSPEC forged receiver and a different handguard. The bore is bright and the rifling is sharp, but could use a good cleaning and lubrication. Additionally the Maxim HATEBRAKE muzzle booster reduces recoil, decreases flash . When it comes to a gun thats stubby and stashable while also chambered in a rifle caliber, the clandestine capability also comes with an awful lot of bang. That said, the .300 did produce more recoil, but I dont think it was solely the caliber at play. Lets start with the grip. It also mitigates the felt recoil. Your email address will not be published. If you have considered buying an AR 15 pistol, you may wonder what the hype is, what exactly is the definition of an AR 15 pistol, and if its worth even having? On the other hand, an AR 15 pistol, with its shorter barrel length, wont be able to generate those velocities, so you wont get the same ballistic performance. As both an experienced writer and shooter, you can find Dave's work across all RECOIL titles to include RECOIL, CONCEALMENT, OFFGRID, and CARNIVORE. KEEPING IT SHORT AND QUIET Photos by Tamara Keel with Dave Merrill. I know that sounds absurd, but ATF regulations are hardly a place to look for logic. If you cant, leave the damn thing alone. . The Maxim Defense PDX comes in a few different flavors in order to satisfy most needs. They are meant for close quarters. There are three models: the MD-1505S which comes with the SCW compact stock; the MD . 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! If you dont want a Hate Brake you can roll with something more integral: the Maxim Defense Heartbreaker silencer. The PDX was one of the products born out of this transition. The suppressor is the muzzle device to those systems, and designed and tuned for the rifle. Its a great option for close-quarters fighting. This patent-pending device significantly reduces recoil, decreases the flash signature, pushes gasses, and concussion wave downrange away from the operator, and improves overall performance. Were going to pair the two up and let them battle it out to let you decide which is best for you. Sign Up today for our FREE Newsletter and get the latest articles and news delivered right to your inbox. . There is nice stippling treatment on the front and back straps. While I didnt do any adjustments to the PDXs gas settings, Maxim recommends it only be done by a gunsmith, its nice to know the option is there for the guys who like to really fine-tune their stuff. My first reaction was a mix of goosebumps and exclaiming, Holy sh*t!. When youre looking for Maxim Defense PDX ingenuity in a standard AR-15 package, the MD-1505 is your answer. We tested accuracy out to 100 yards, which is probably the maximum distance for this pistol for most uses. Overall, I had a great time with both of these guns. Maxim Defense. With the SCW stock, SCW brace, and SCW pistol system options, there. In the specific case of the MD-1505 vs. PDS, it. 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. Since you can readily find them for around $25, it seems like a great upgrade. Get discounts from top brands and our latest reviews! Optimized low flash The PDX - which is just 18.75 in. So far as what a PDW should be capable of this one is no slouch. 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. Their description says more affordable, not easily affordable or any other permutation thereof.. The Maxim SCW stock can be pulled out one-handed to full extension for immediate weapon deployment. CMG West, LLC OAL is available in both pistol and SBR configurations. Copyright 2023 American Firearms LLC. The PDX's gas system is adjustable/tunable at the armorer level. Visit our Amazon Influencer Page for more products we recommend:https://www.amazon.com/shop/refactortactical, Your email address will not be published. We'll assume you're ok with this, but you can opt-out if you wish. effective 10/03/2019. Thank you for reading this post, don't forget to follow and signup for notifications! Plus, I really enjoyed the way the Hatebrake performed. Theres some kind of black magic voodoo going on here, of that were sure. Fit and finish are excellent, best of any AR platform Ive purchased. Maxim Defense started off as a manufacturer of firearms parts, but it made the decision to transition into firearms manufacturing. 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. dominates in close-quarter encounters and achieves maximum energy on target without sacrificing accuracy at distance. Iain may or may not be drinking beer. Caribou Media West, LLC Timing is everything, and in this case Big Blue Smith & Wesson, gave Maxim the opportunity. New for 2019. Grab your favorite hiking bag, throw your PDX in, and get exploring! Best Price: $2096.48 See Deal Last Updated: 01/20/2023. Traditional Rifling: Which is Better? This muzzle device is vented, and Maxim has found a way to use these vents to disperse a lot of the gas and concussion downrange. Overall, though, the gun handled very well and still proved to be a ton of fun when just slinging lead. Therefore, an SBR rifle comes with the hassle and expense of being classified as an NFA weapon. The primary difference is that an AR 15 pistol cannot legally have a rifle stock attached to it. Cleaner, cooler, no smoke cloud blown back/near shooter with each round, for that kind of cash Starting at the muzzle, each MD-1505 is equipped with the patented. The total unloaded weight is just under 5.7 pounds with its 7075-billet aluminum lower receiver. Maxim Defense PDX 5.56 NATO Semi Auto Pistol 5.5" Barrel 20 Rounds M-LOK Free Float Forend Maxim Defense SCW PDW Pistol Stabilizing Brace Arid Flat Dark Earth. Seriously, word play with phrases that mean the same thing in context then trying to pretend like they are somehow different. Editor of CONCEALMENT Magazine and Features Editor for the RECOIL Magazine Group, Dave Merrill has a particular passion for foreign weapons and concealable carbines. This compact system is extremely well made and well thought out. Some states do not restrict long guns in vehicles for those with a carry permit, so the AR pistol has an advantage here. Palmetto State Armory. 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. The PDX Kit comes with everything you need to turn your lower receiver into a Maxim Defense PDX. However I think price point is less of an issue for people and the real issue is MD saying using a suppressor voids the warranty, if that stance still remains. And Maxim picked them up. 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 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. Check out ourDAILY DEALS pagefor industry deals and discounts. MXM-47802. Certainly would be unlikely to want to shoot any of the above indoors with out earpro. I have to say that I rather like this. Barrel Length: 5.5". This provides easier access to the safety control. If further tweaking is needed, there are still some options. Get discounts from top brands & our latest reviews! This cone-shaped booster pushes the flash signature, gas, and concussion forward and away from the operator. A 38-inch ratchet is all you need to crank this down. This is one gorgeous AR-style pistol. Please read the complete description before purchasing. Im sure if you poke around the guns long enough, youll be able to find other similarities, but those are the major ones for me. There is some handling wear but nothing major. The PDX redefined compact firepower in terms of size, durability, and accuracy. Maxim Defense CCS Stock Gen 6 for AR-15 Rifles Mat Maxim Defense PDX SPS 5.56 NATO AR-15 Pistol Arid Earth. Theyve done this to us before with premiere products to catch our unedited reactions, first with the original PDX and later with their have-a-convo-while-shooting M240 silencer. Maxim Defense PDX SPS 5.56 NATO AR-15 Pistol Arid Maxim Defense PDX SPS 7.62x39mm Semi Auto Pistol 5.5" Barrel 20 Rounds M-LOK Fre Maxim Defense PDX SPS 7.62x39mm Semi Auto Pistol 5 Maxim Defense AR-15 CQB Stock With JP Gen 2 Silent Capture Spring Standard Weigh Maxim Defense AR-15 CQB Stock With JP Gen 2 Silent Capture Spring Heavy Weight A Maxim Defense CQB Gen 6 Stock for AR-15 Rifles Matte Black Finish. Speaking of the handguards, you can use HK 416 compatible ones and vice-versa. We were surprised when we were told that 7.6239 metered at 1,900 fps; this is roughly equal to the velocity we get from our 7.75-inch Mini Draco SBR. Then again the need for an 18.5 OAL rifle like this seems nichey. The debate that has gone on in recent years over the AR 15 pistol platform is related to the use of "pistol braces", which by design can mimic a rifle stock. Manual cycling of each round. FINISH: Arid Earth and Black in color Type-III Hard Anodizing, Puerto Rico Customers: Consumers must go through your local PR dealer. Maxim Defense PDX 5.56 NATO 20+1 Round Semi Auto AR Pistol, Black - MXM47803. Maxim Defense SBA 7.62x39mm Ammunition 20 Round Bo Maxim Defense SBA 5.56 NATO Ammo 62 Grain TUI Lead Free. 98002. Making an AR. Maxims director of engineering, Patrick Tramble, ran off a laundry list of both major and minor challenges they had to overcome to produce the PDX SD.