Features specific to the M16A1 Upper Receiver are the original A1 profile, with no shell deflector, A1 rear sight housing and proper carry handle contours. The upper starts off as a 7075 T6 aluminum forging, then is machined to mil-spec dimensions. Once machined, the upper is finished with a matte black hard anodized finish. The black finish matches most modern lowers found on the market today. Upper receiver does have M4 feed-ramps. Made from colt molds with the C H forge marks.
Standard AR-15 components will work perfectly with this upper.
This upper is the proper receiver for the following reproduction builds:
- Model 607
- Model 609 (XM177E1)
- Model 619
- Model 629 (XM177E2)
- Model 639
- Model 651
- Model 653
Upper Receiver is machined & finished to our specification. Nodak Spud does not machine, finish or otherwise manufacture this part. The forging is solely provided to us by Nodak Spud.