MAXIM PDX COMPLETE AR-15 UPPER - Maxim Defense PDX Complete Upper For AR15 - Black | 300BLK | 5.5" Barrel | Hate Brake

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The NEW 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. With the PDX™ U.R.G, you dominate close quarter encounters and achieve maximum energy on target without sacrificing accuracy at distance. At just 14” in overall length and a 5.5” barrel, the PDX™ U.R.G. is the ultimate choice for when concealment and personal defense is non-negotiable.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

The PDX™ U.R.G. 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 U.R.G. uses a Direct Impingement system. ***Note*** This upper has a mil-spec BCG, so will not work with the SCW stock or PDW brace as is. SPECIFICATIONS WEIGHT: 4 lbs OVERALL LENGTH: 14 inches BARREL LENGTH: 5.5 inches CALIBER: .300 Blackout FINISH: Black Type-III Hard Anodizing FEATURES • HATEBRAKE installed under handguard • M-slot compatible handguard • Military grade materials [6Al-4V Titanium, 17-4 Stainless Steel, 7075 and 6061 Aluminum] • HK height rail for a more rigid upper receiver • Maxim Mil-Spec BCG FUNCTIONS • Optimized Personal Defense Weapon Upper • Increased reliability due to included HATEBRAKE • Optimized low flash and sound signatures • Designed to work with any Mil-Spec lower receiver
More Information
ManufacturerMaxim Defense Industries
Caliber300 AAC Blackout
Recoil PadNo
Manufacturer Part NumberMXM-47827
CA Prop 65No