The Billet-AR Upper Receiver Set Is 100% machined In The USA And Was engineered From The Ground Up To Address Structural Design weaknesses In Standard USGI receivers And Enhance Overall tolerances. It Has a Precise Bolt Raceway For Smoother chambering, More Rigid Receiver walls To Reduce Firing Flex. The Billet-AR Upper Receiver Is CNC machined From 7075-T6 Aerospace Aluminum Billet Stock With a Top Picatinny Rail, M4-Style Extended Feed ramps, And Smooth Side Profile Without Forward Assist For
The Billet-AR Upper Receiver Set Is 100% machined In The USA And Was engineered From The Ground Up To Address Structural Design weaknesses In Standard USGI receivers And Enhance Overall tolerances. It Has a Precise Bolt Raceway For Smoother chambering, More Rigid Receiver walls To Reduce Firing Flex. The Billet-AR Upper Receiver Is CNC machined From 7075-T6 Aerospace Aluminum Billet Stock With a Top Picatinny Rail, M4-Style Extended Feed ramps, And Smooth Side Profile Without Forward Assist For
$183.42