Professional assembly of your upper receiver. We build many of the common calibers for the AR15 / 308 platform. The complete build consists of proper head-spacing, hand fitting and assembly, pinning of gas block, & test firing of your upper.
Included in the service;
Assembly and fitting
Test firing and head spacing
*Due to differences in components your bolt may not headspace correctly with your barrel.
Return shipping and missing components extra.
Ship your parts to:
PO Box 10
Darien, WI 53114
1 Review Hide Reviews Show Reviews
The upper was built with an 11.5 inch barrel and worked flawlessly. The initial magazine was problematic. After cycling the action a couple of dozen times by hand the bolt worked itself in. After the barrel was broken in the next 500 rounds worked perfectly. No stoppages or hiccups. We used 4 different type mags with no problems. I an very happy with the build.