A great selection of stripped and assembled / complete upper receivers.
With stripped or complete receivers in Right Hand from Anderson Manufacturing, completely assembled Left Hand receivers from Stag Arms, both for the AR-15 platform, and Right Hand stripped or complete receivers from Guntec for the .308 / AR-10 platform, you'll find what you need to get your next build started.
This Left Handed Complete Upper Receiver is machined from 7075 T6 Aluminum forging. Featuring M4 feed ramps, this upper receiver can be used with multiple calibers on the AR-15 platform. Made in the US