Aero Precision X15 Receiver Set - AR-15 Lower Receiver with Assembled Upper Receiver - Black (Color: Black)

Aero AR-15 Lower and Upper Receiver Set Aero Precision's X-15 receiver set makes a solid foundation for your next AR-15 build. This matching set of lower and upper receiver includes all the great features of Aero's Gen 2 lower, including a flared magazine well and upper tension screw. The assembled upper receiver features a pre-installed [...]