Upper And Lower Receivers

The Standard Manufacturing Co. STD-15 upper receiver, like the STD-15 lower receiver, is entirely manufactured in-house to the most exacting tolerances and to the highest quality control levels. The STD-15 upper begins with a 7075T6 aluminum forging and...

The Standard Manufacturing Co. STD15 upper receiver is completely manufactured in-house alongside the STD15 Lower receivers.   As with the STD15 lower receivers, the STD15 uppers are constructed to the most exacting...

Milspec Lower Receiver Parts Kit Great quality parts to make a true Milspec Lower Receiver into a Rifle The kit includes: A2 Pistol Grip Bolt Catch Bolt Catch Plunger Bolt Catch Roll Pin Bolt Catch Spring Buffer Retainer Buffer Retainer...