16″ 9mm Complete Upper Assembly

6″ 9mm Complete Upper Assembly

13.5″ UDP Series Handguard

0940 Pistol Caliber Upper Receiver

9mm Bolt Carrier Assembly

5.5″ UDP Series Handguard

6″ 40 S&W AR-15 Barrel

9mm Buffer Kit

0940 Proprietary Parts Kit

9mm Flash Hider

9mm AR-15 Carbine Buffer

9mm Buffer Spacer

9mm Firing Pin

0940 Bolt Catch Actuator

9mm Bolt Catch Spring Kit