Latest Death Notices Gateshead, Network Marketing Team Names, Gap Between Denture And Roof Of Mouth, Washington County, Va Drug Bust 2021, Fort Wayne Road Construction Projects 2022, Articles M

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. Then again the need for an 18.5 OAL rifle like this seems nichey. Theres nothing exceptional going on at least not until you step inside. 17 design billet lowers from primary arms are nice for 75 bucks 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 Defense PDX SPS .300 AAC Blackout Semi Auto Pistol 5.5\" Barrel 20 Rounds M-LOK Free Float Forend Arid/Flat Dark Earth. Though similar to the PDX in size and capability, the PDX has a MILSPEC forged receiver and a different handguard. 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 Kel-Tec PMR-30 Semi-Auto Pistol 22 Winchester Magnum 4.3 . They have now launched the new MD-1505 to offer a more affordable AR-15-style PDX. The PDX - which is just 18.75 in. New for 2019. Maxim Defense Industries firearms, firearm parts, and accessories for sale online. At just 18.75" in overall length, the PDX delivers groundbreaking power and performance in a . The PDX dominates close quarter encounters and achieves maximum energy on target. Starting at the muzzle, each MD-1505 is equipped with the patented. Maxim Defense made a high-quality gun with a specific purpose in mind. Using the NATO M855 62gr ball ammo with a 1:7 . Maxim Defense even came out with a Covid-19 version of the PDX, check it out. I bought this and put it on a James Madison 80% lower with a single stage trigger and cmmg parts kit. The Ultimate Firearms Destination for the Gun Lifestyle, 2023 Recoil Magazine I put about 200-250 rounds through each of these guns, and Im happy to report neither gun had a single malfunction not that I was expecting one from either. Ive always loved these small PDW-style pistols and was lucky enough to get a couple ofCertified Used selections out of the Guns.com Vault to review. For the best experience on our site, be sure to turn on Javascript in your browser. Terms and Conditions and Privacy Policy. Increased reliability due to included HATEBRAKE. The jet ports cant be swapped in five minutes in the field, but its specifically designed that way. These handguards provide a monolithic-like upper receiver platform and M-Slot compatibility on five sides. We do not sell or share your information with anyone. If there is one stone to throw at them, its the price, with both of them commanding an MSRP of over $2,200. The price point will not be for everyone. Both performed flawlessly in the PDX. The MD-1505 was engineered to bring our top-tier PDX package to an even more affordable price point. Maxim Defense. Its a great option for close-quarters fighting. We were shooting both PMC .223 Remington 55-grain FMJ-BT and PMC 5.56mm 55-grain FMJ-BT. We'll assume you're ok with this, but you can opt-out if you wish. With 5 total positions you can adjust for maximum comfort and multiple scenarios. FINISH: Arid Earth and Black in color Type-III Hard Anodizing, Puerto Rico Customers: Consumers must go through your local PR dealer. You get the benefits of a reduced visual signature and a reduced noise signature without the unwieldy length of a full-sized rifle. One of the platforms leading the pack in this niche is the Maxim Defense PDX. Need Help?service@guns.comCall (866)582-4867, PO Box 1131 13800 Nicollet Blvd Burnsville, MN 55337 2023Guns.com. According to the National Firearms Act (NFA), a rifle has to have a minimum barrel length of 16 inches, or it is considered an NFA weapon and requires a $200 tax stamp in order to own legally. Maxim Defense's New PDX Rifle is Only 18 Inches Long - SHOT Show 2019. by Levi Sim on January 22, 2019. . they dont cost that much anymore give me a break. The PDX Kit comes with everything you need to turn your lower receiver into a Maxim Defense PDX. The Maxim SCW stock can be pulled out one-handed to full extension for immediate weapon deployment. 2023 Maxim Defense Industries. SUBSCRIBE TO RECEIVE OUR LATEST BLOG POSTS. Maxim Defense PDX 5.56 NATO 20+1 Round Semi Auto AR Pistol, Black - MXM47803. Rainier Arms Summit Club The Maxim Defense PDX is an answer to the SOCOM request. The gas block has a threaded jet port which allows for custom tuning of the gas flow. 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. Their description says more affordable, not easily affordable or any other permutation thereof.. The SCW system adds a mere 4" to the end of the receiver with a full extension of 8.75", providing complete comfort . These cookies will be stored in your browser only with your consent. This category only includes cookies that ensures basic functionalities and security features of the website. I shoot enough of them every year, but Id rather be on the pistol range. But having experienced previous PDX SD prototypes, the thought didnt even cross the mind. spartan billet lowers from jbo are even nicer for 125 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. Rainier Arms on Twitter Takedown is slightly different than normal, but nowhere near difficult. So, then they [DoD] ask for a lower-flow suppressor. 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. MXM-47822. 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. 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. This just the first taste of whats to come from Maxim Defense. Maxim Defense PDX Pistol (5.56mm) Born from the SOCOM PDW solicitation, the NEW Maxim Defense PDX is designed to handle the fierce demands of the Tier 1 community. 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. Overall, though, the gun handled very well and still proved to be a ton of fun when just slinging lead. The PDX KIT is also equipped with Maxims HATEBRAKE Muzzle Booster. M-slot compatible handguard I felt like I got a better grip at the front of the gun with the DDM4 PDW because of it. We took their new, Some of the less common but still awesome CCWs! **The Maxim PDX U.R.G ships with your choice of a Standard Mil-Spec BCG to be . A 38-inch ratchet is all you need to crank this down. Potatoes, onions, and rapid prototyping machines. This compact system is extremely well made and well thought out. Maxim Defense PDX Pistol (.300 Blackout) with DSX-D Suppressor (7.62mm) . Maxim Defense MXM-47922. 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. We travel nearly an hour across dry, dusty back roads in rural Idaho. Grab your favorite hiking bag, throw your PDX in, and get exploring! Its an exemplary case for 300 Black admittedly. Maxim Defense has expanded its premium line of short rifles to include a suppressed version, the PDX-SD rifle. If I had to choose just one, I would choose the Maxim PDX because its chambered in the more affordable 5.56, which would probably lead me to shoot it more. One of the most memorable and remarkable names included among this new staff is Dr. Phil Dater. They are both a ton of fun to shoot at the range, so you cant go wrong with either of these choices. This trigger has a very crisp pull and a positive and short reset. Some might argue that there is a big difference here, but both seemed fairly standard to me. At just 18.75" in overall length, the PDX delivers groundbreaking power and performance in a sub compact platform. 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. Maxim MDX:SP 505 PDX-300 BLK-URBAN. $2065.50. Will SIG's .277 FURY really stand, NEW from Smith & Wesson comes a folding pistol caliber carbine that packs down smaller, Nighthawks don't grow on trees! But first,. Sure, you can play mucky muck with different buffer weights, but you dont have to. Wow! Remember, Magpul started by making rubber pull straps for magazines, SureFire started with bulky lasers, and Daniel Defense used to only make handguards. All Deals; Today; Categories . Born from the SOCOM PDW solicitation, the Maxim Defense PDX is designed to handle the fierce demands of the Tier 1 community. They have now launched the new "MD-1505" to offer a more affordable AR-15-style PDX. Not that the 5.56 round is a heavy recoiling round, but recoil was relatively light regardless. Born of the SOCOM PDW solicitation, the Maxim Defense PDX dominates CQB encounters and puts maximum energy on target. You also have the option to opt-out of these cookies. 7.6239, 124gr: 1675 FPS avg. The PDX uses an Advanced Combat Trigger (ACT) from ALG Defense, which they put at a 6-pound trigger pull. MD is well aware that affordable is an extremely subject term. This 556 feeds every round Ive put thru it including a 60 round drum full of bulk reloaded ammo. That shouldnt come as a surprise. That said, quality speaks for itself. The contoured upper receiver reduces the width between the stock rods as well as allowing the rods to be positioned higher on the receiver. CMG West, LLC Related Article AR Pistol Lower Buyers Guide | Maxim Defense. 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. Lets discuss the benefits of owning and using this platform. SDS Imports 1911A1, Metal Frame Pistol, Full Size 9mm, 5" Barrel, Steel, Black, Fixed Sights, Manual Thumb Safety, 9rd . You do not pay anything extra and your purchase helps support our work. They are meant for close quarters. The same ammo fired from an AR 15 pistol platform clocks in at an average of 2,631 feet per second. Everyone raved about how great it was to shoot 7.62 rounds form a 5.5 barrel. Maxim Defense has officially jumped from the PDW stock market to the PDW market itself. You have entered an incorrect email address! Never been impressed with Maxim Defense products. At just 18.5 inches in . Maxim Defense MD15 Rifles. Save my name & email in this browser for the next time I comment. All in all, if youre looking at multiple calibers and configurations from Maxim Defense MDX Battle Rifle System, it probably exists. 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. The PDX - which is just 18.75 in. 9am-6pm CST Tue-Fri, 2023 Omaha Outdoors, LLC. The amount of gas flow back through the barrel is about equal to the average silencer. Finally! Given the sterling reputation of each manufacturer, reliability should never be an issue as long as you take care of your gun. It features a raised top rail, familiar AR controls, and the Maxim Hatebrake muzzle device reduces recoil for an even smoother shooting experience. Answered by Tom B , Gear Expert, from IL, United States, on September 02, 2021. The Hatebrake simply works to dispel gas down range and keep you on target. 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. and what little you can do with it Therefore, an SBR rifle comes with the hassle and expense of being classified as an NFA weapon. The trigger guard is ample in size to accept a gloved hand with a Reptilia pistol grip. All of which improve overall performance in short barrel pistols and rifles. Maxim Defense PDX 5.56 Arid Pistol No Brace. Besides the comfort factor, I also felt like it just stuck to the hand better. SHOP ALL. The AR15 at its heart is a rifle and carbine platform. Packaging is very well thought out. 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. We tested accuracy out to 100 yards, which is probably the maximum distance for this pistol for most uses. 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. Be sure to follow us onFacebook,Instagram, andLinkedInfor exclusive content and deals. Some of their stuff is kind of OK, but I can do better for quality, price, and fit/function with other products. Today a Maxim Defense Pdx will cost you an average of $2153.44 which is $87.94 lower than the 12-week average price. 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. Washington There are three models: the MD-1505S which comes with the SCW compact stock; the MD . 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. Reassembly is exactly the same, but in reverse. Save my name, email, and website in this browser for the next time I comment. So how can there be such a thing as an AR15 pistol? 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. Meet the Maxim PDX pistol. At Rainier Arms, you can find the Maxim Defense MDX line, Buffer & Springs, or explore the offer even further. Maxim Defense MDX 505 PDX Mil-Spec Complete Upper - 5.5" Black . At just 18.75 in overall length, the PDX delivers groundbreaking power and performance in a subcompact platform. 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. This gun was designed specifically to meet the needs of Tier 1 . Since you can readily find them for around $25, it seems like a great upgrade. Cleaner, cooler, no smoke cloud blown back/near shooter with each round, for that kind of cash Required fields are marked *, Stay up to date with all things RE Factor Tactical with updates sent directly to your inbox, Vehicle Travel and Offbody Concealed Carry, AR Pistol Lower Buyers Guide | Maxim Defense, Best AR Pistol Brace and How the ATF is Viewing Them, How To Buy a Suppressor | The New ATF eForms Form 4, https://www.amazon.com/shop/refactortactical, Mossberg Maverick 88 Upgrades to Consider, Hard Head Veterans American Made ATE_Lite Ballistic Helmet, What Is The Best Tactical Flashlight For Under $100, Elevate Your Hunting Game with the 8.6 Blackout Barrel, Accurizing An AR15 To Boost Performance and Accuracy, Defeating Armor Piercing Bullets with Level 4 Body Armor. Details; SKU: 771894: Brand: Maxim Defense: Model Number . This is one of the reasons I gravitate toward piston driven rifles with adjustable gas plugs. All rights reserved. Making an AR that actually runs in 7.6239 is a challenging endeavor; weve seen far more failures than successes. Additionally the Maxim HATEBRAKE muzzle booster reduces recoil, decreases flash . 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 stock of the PDX appears very similar to Maxims traditional PDW stock options, but there are some significant deviations. One note that comes to mind is the small size, but thats all about remembering the purpose of this pistol. The suppressor is the muzzle device to those systems, and designed and tuned for the rifle. 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. Plus, I really enjoyed the way the Hatebrake performed. If further tweaking is needed, there are still some options. The old mixes with the new; a weathered manual mill up front, with a CNC machine in the next room. ALL RIGHTS RESERVED. Buy Maxim Defense PDX Pistol 7.62x39 Black: GunBroker is the largest seller of Semi Auto Pistols Pistols Guns & Firearms All: 970202935. . 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. 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. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 2023 Recoil Magazine 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. Click Here to get your pack of 50 Print-at-Home targets when you subscribe to the RECOIL email newsletter. There is nice stippling treatment on the front and back straps. It gives them room to interpret the law as they please. 5 mags less than 2 mags trough open to trades no junk please Text works better If you cant, leave the damn thing alone. 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. The total unloaded weight is just under 5.7 pounds with its 7075-billet aluminum lower receiver. Speaking of the handguards, you can use HK 416 compatible ones and vice-versa. Deals 15% Off Range Gear - Guns . Pop off the Hate Brake, thread on a can, and youll more than likely be totally good to go. effective 10/03/2019. At the heart of the PDX KIT is our Maxim SCW system. I always thought maxim defense have some great looking guns and it is nice to see the price point reduced with the new line. As a special-purpose system, if it doesnt make sense to you, then it wasnt made for you. Their description says more affordable, not easily affordable or any other permutation thereof. With calibers available at Omaha Outdoors in 300 Blackout, 5.56 NATO, and 7.62x39, you are sure to find the CQB weapon to fit right in with your defense needs. This is an ultra-compact system. The PDX Kit uses a Direct Impingement system. Kel-Tec PMR-30 Semi-Auto Pistol 22 Winchester Magnum 4.3 Barrel 30-Round Magazine $ 449.99 . 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. The H3 buffer is shorter and heavier, allowing for a slight delay when firing and aids in BCG longevity. And with a 5.5-inch barrel? Fit and finish are excellent, best of any AR platform Ive purchased. MXM-47802. Thats more delayed blow back, roller locked or even straight blow back territory. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Systems this small have been attempted before, but . Maxim Defense CCS Stock Gen 6 for AR-15 Rifles Mat Maxim Defense PDX SPS 5.56 NATO AR-15 Pistol Arid Earth. Seriously, word play with phrases that mean the same thing in context then trying to pretend like they are somehow different. 9.5 difference. This makes for an incredibly flat-shooting firearm, which was especially evident when shooting rapidly. The PDX's gas system is adjustable/tunable at the armorer level. SCW Buffer-carrier An indirect benefit of the AR 15 pistol platform is that its great for utilizing a suppressor. Utilization of the patent-pending Maxim SCWTM system reduces stock length to 4 in., while an integrated BCG with interchangeable buffer weights provides maximum performance and versatility without sacrificing functionality (and, for the aesthetically minded, form). It is mandatory to procure user consent prior to running these cookies on your website. Check out ourDAILY DEALS pagefor industry deals and discounts. If you want the benefits of the more compact AR 15 pistol platform, there are ways to mitigate the handling and ballistics drawbacks. Auburn Buy RIP-IT Defense Ponytail Strap Black - Baseball/Softball Accessories at Academy Sports DGSTRAP-B available as low as $4.99. There are some other smaller differences that are at play when comparing these two guns. Based in St. Were reader-supported, which means we may earn a small part of the sale from links to any products or services on this site. Put email address in and clicked the Subscribe button and nothing happens. ***10mm with Glawk mags has entered the chat***. This is the Maxim Defense MukWerx facility, and its remoteness ensures no one will inadvertently come across what theyve been working up. Maxim Defense PDX 5.56 NATO 20+1 Round Semi Auto AR Pistol, Black - MXM47803. Its my favorite gun Ive ever owned. Remember, this pistol was designed for CQB situations, which are within a few yards. Maxim Defense Industries manufactures rifle-style pistols, uppers, stocks, braces, and accessories for those who will not compromise on CQB performance. FEATURES: 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. The biggest difference in terms of comparison between these guns is obviously the caliber. Guns Listing ID: 382623. Certainly would be unlikely to want to shoot any of the above indoors with out earpro. Griffin Armaments has a whole new way of looking at suppressors. With that said, do not rely on the average cop to know all the specific legalities of owning and carrying an AR 15 pistol. The handstop is also different on each gun. The Hatebrake muzzle brake from Maxim does an incredible job of pushing gas downrange, but more on that in a minute. Theres some kind of black magic voodoo going on here, of that were sure. Both . 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. MD is well aware that affordable is an extremely subject term. The MD 1505 AR-15 rifle is meant to give gun owners a chance to get the PDX feel, look, and features, without the PDX price tag. With the SCW stock, SCW brace, and SCW pistol system options, there. Given the unique nature of this stubby shooter, it should be no surprise that nearly all of the PDX consists of proprietary parts from the gas system length to the bolt carrier group to the buffer system. FEATURES: HATEBRAKE installed under the handguard. That said, quality speaks for itself. Its not terribly hard though; just pop both takedown pins and pull the upper off from the front. Related Article How To Buy a Suppressor | The New ATF eForms Form 4. and the Cheaper Than Dirt symbol are registered trademarks of Direct Investments LTD. America's Ultimate Shooting Sports Discounter, Maxim Defense SBA 7.62x39mm Ammunition 20 Round Box 117 Grain TUI Projectile. Again, juice vs squeeze. 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. 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. ***Steyr AUG NATO w/3x Swarovski optic and 60rd Magpul GenM3 drum mags has entered the chat*** is designed to handle the fierce demands of the Tier 1 community. When youre looking for Maxim Defense PDX ingenuity in a standard AR-15 package, the MD-1505 is your answer. The .300 AAC Blackout caused a little more muzzle flip, but it wasn't too bad. Features of this pistol includes a picatinny optics rail, m-lok . Thank you for reading this post, don't forget to follow and signup for notifications! Maxim Defense Pdx 505-sps. Maxim Defense Industries is a defense development company that develops and manufactures firearms, firearm parts, and accessories. If looks were enough reason to purchase a pistol, then this is the pistol to buy! The barrel twist rate of the PDX chambered in 5.56 is 1:7 (178mm) The preferred load for the 5.5" barrel with a 1:7 barrel twist rate is the NATO M855 62gr ball.