Maxim Defense Industries

Maxim Defense PDX U.R.G. Pistol Kit, 5.56mm, 5.5" Barrel - FDE

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Born from the SOCOM PDW solicitation, the NEW Maxim Defense PDX™ U.R.G. is designed to handle the fierce demands of the Tier 1 community. The PDX™ U.R.G. dominates in close quarter encounters and achieves maximum energy on target without sacrificing accuracy at distance. At just 14” in overall length, the PDX™ U.R.G. is the ultimate choice for when concealment and personal defense is non-negotiable.

At the heart of the PDX™ KIT is Maxim's newly developed Maxim SCW™ PDW Brace. This patent-pending design cuts down the length of the stock to 4” and offers an integrated BCG with interchangeable buffer weights to give you the flexibility to maximize performance and versatility without sacrificing functionality or form. The PDX™ KIT is also equipped with newly invented Maxim HATEBRAKE™ Muzzle Booster. This patent-pending device significantly reduces recoil, decreases the flash signature, pushes gasses and concussion waves downrange away from the operator improving overall execution in short barrel pistols and rifles. The PDX Kit uses a Direct Impingement system.

The PDX Kit comes with everything you need to turn your lower receiver into a Maxim Defense PDX.


  • HATEBRAKE installed under handguard
  • MOA accurate
  • M-slot compatible handguard
  • Military grade materials [6Al-4V Titanium, 17-4 Stainless Steel, 7075 and 6061 Aluminum]
  • SCW Buffer-carrier
  • HK height rail for a more rigid upper receiver
  • Rapid Deploying PDW Brace


  • Optimized Personal Defense Weapon kit
  • Increased reliability due to included HATEBRAKE
  • Optimized low flash and sound signatures
  • Designed to be installed on any Mil-Spec lower receiver


  • WEIGHT: 5 lbs
  • LENGTH: 14 inch upper 4 inch SCW stock (collapsed)
  • BARREL LENGTH: 5.5 inches
  • CALIBER: 5.56mm
  • MUZZLE VELOCITY: 5.56 – 1,965 fps avg (62 gr)
  • FINISH: Arid Earth





Maxim Defense Industries Maxim Pdx Pistol Kit (upper And Brace Only), Maxim Mdx 505 Pdx Upper, 556nato, 5.5" Barrel, Hate Brake, Flat Dark Earth Finish, Scw Pdw Brace Mxm-47816

Model: PDX
Finish/Color: Flat Dark Earth
Description: Maxim PDX Pistol Kit
Caliber: 556NATO

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