Angstadt Arms UDP-9 Complete Upper 9mm Luger 6" 1:10 Twist Black

The Angstadt Arms UDP-9 Complete Upper is a ready-to-run 9mm Luger upper assembly that drops onto any 9mm AR-15 dedicated lower receiver, giving builders a fast path to a compact pistol-caliber AR pistol, SBR, or pistol-caliber carbine.

This assembly centers on a 6" barrel with a 1:10 twist rate and 1/2x28 threading for standard 9mm muzzle devices. The matching 5.5" handguard sits over the barrel to provide a slim, lightweight platform for accessories, and the entire upper is finished in Black. Aluminum barrel construction keeps overall weight down without sacrificing rigidity for 9mm pressures.

Engineered around the UDP-9 platform, the upper is designed to feed from both GLOCK-pattern and Colt-pattern 9mm stick magazines, so you can run whichever magazine standard you prefer without swapping bolts or magazine catches. The complete assembly ships ready to mate with a host lower - pair it with any 9mm AR-15 lower of your choice and you are shooting.

At just 2.60 lbs, this is one of the lightest and shortest 9mm complete uppers on the market - well suited to pistol-caliber carbine builds and AR pistol platforms that share the standard AR manual of arms. New condition.