ADAMS ARMS AR15 M4 Flat Top G2 Piston Upper Receiver Complete

The Adams Arms Gen2 Piston Upper Receiver forged from 7075-T6 aluminum, this complete upper is precision machined to mil-spec M16/M4 specifications and features M4 feed ramps. The Receiver hole has been drill to .180″ eliminating the need for a receiver bushing for our Piston Rods, the Cam Pin channel is cut to a 45 degree angle to eliminate Cam Pin wear. Match this upper with one of our AR15 lower receivers for a solid and dependable fit. Description: Mil-Spec Forged 7075-T6 Piston Upper Receiver Generation 2 Inside Lifecoat™ Treatment, for improved BCG gliding ability .180″ Piston drive rod hole, no Receiver Bushing needed 45 degree Cam Pin channel Laser engraved Picatinny Rail T-Marks Type III Class II Hard-coat anodized finish M4 Feed Ramps M16/M4 Specifications Auto-Sear Cut .250 Takedown Pin Holes Engraved Adams Arms Logo Compatible with AR-15/M4/M16 Mil-Spec Lower Receivers Works with Standard AR15/M16 Components and Magazines Compatible accessories see under this article, accessories MADE IN THE USA