UPPER-Adams Arms FGAA01358 P1Complete Piston Upper 5.56x45mm NATO 11.50″ Black Nitride Barrel

Adams Arms FGAA01358 P1 Complete Piston Upper 5.56x45mm NATO 11.50″ Black Nitride Barrel, Aluminum Black Receiver, M4 Handguard for AR-Platform

The Adams Arms P1 model is the perfect platform for shooters who enjoy building and customizing their rifle. The P1 model includes our Picatinny Railed Gas Block with 3 adjustable settings and M4 furniture. The P1 is your Piston Driven foundation, ready to be customized to fit your needs.