Angstadt Arms complete upper receiver pistol assembly is ready to run out of the box with any 9mm AR-15 lower receiver. Featuring the same high quality parts that go into are UDP-9 pistol this completed upper receiver is compatible with both GLOCK and COLT style 9mm magazines.

• Features:
• 7075-T6 billet aluminum slick side pistol caliber upper receiver with appropriately sized ejection port
• 10.5″ 9mm lightweight profile barrel made from 4150 chrome-moly steel with a 1-10” twist rate. 1/2×28 TPI
• 10” ultra light skeletonized handguard with M-LOK mounting interface on the 3 6 & 9 O’clock positions
• The hand guard features 4 QD swivel mounting points and a top mil-spec 1913 lightening cut picatinny rail with skeletonized M-LOK mounting sections
• Handguard ID: 1.375* The last ¾” of the handguard is bored out to 1.405” allowing most aftermarket sound suppressors 1.39″ in diameter and smaller to tuck inside of the handguard
• Black nitride 9mm AR-15 bolt carrier group. For use with a standard AR-15 hammer
• Compatible with both GLOCK and COLT style 9mm dedicated lower receivers.
• Angstadt Arms 9mm flash hider
• Mil-spec charging handle
• Caliber: 9mm NATO