Precision machined from ordnance quality steel and built to interface in near tolerance with the aluminum stock chassis. The firearm was in terrific shape, just as the numerous pics they posted of it shown. I would certainly acquire from them once more in the future. Excellent seller. :) Standard M14 https://josuetgkqn.dgbloggers.com/29903032/not-known-details-about-sage-m1a-chassis