7.5" 5.56 DRP Pistol Quad Rail Complete Upper

7.5" 5.56 DRP Pistol Quad Rail Complete Upper

Short, stout, and ready for action.

The 7.5" 5.56 DRP Pistol Quad Rail Complete Upper is a rugged, reliable option for shooters looking to build a compact AR pistol without compromising on quality. Built around a mil-spec forged upper receiver with M4 feed ramps, this complete upper features a 7.5" 5.56 NATO barrel treated with black nitride for improved wear and corrosion resistance.

The pistol-length gas system pairs with a nitrided steel APOC Armory gas block and stainless steel gas tube for reliable cycling, even in high-volume shooting. It’s topped with a Jet Black nitride-coated A2 birdcage flash hider and surrounded by an American-made Dirty Bird free float quad rail handguard, offering a durable and modular platform for accessories.

An AO Precision Mil-Spec Phosphate BCG (may vary by availability) is included, along with a properly torqued barrel nut and muzzle device, secured using Permatex 242 and AEROSHELL 33MS anti-seize grease—a BRD signature for long-term reliability. Designed and built in the USA, this complete upper is backed by a Limited Lifetime Warranty.

Specifications

• Upper Receiver: Mil-Spec 7075-T6 Aluminum w/ M4 Feedramps
• Barrel: 7.5" 5.56 NATO, Nitride Finish, 1:7 Twist
• Gas System: Pistol Length
• Gas Block: APOC Armory Nitrided Steel
• Gas Tube: Stainless Steel, Pistol Length
• Handguard: Dirty Bird Free Float Quad Rail, 6061 Aluminum
• Bolt Carrier Group: AO Precision Mil-Spec Phosphate (may vary)
• Muzzle Device: A2 Birdcage, Jet Black Nitride Finish
• Origin: American Made
• Warranty: Limited Lifetime

Ideal for close-quarters or range-ready AR pistol builds, this upper delivers durability, performance, and BRD-quality craftsmanship—without the inflated price tag.