Made from 8620 material, heat treated, chrome lined and black phosphate coated. Chrome gas key hardened to Mil-Spec and staked. Bolt made from carpenter 158 materials. This bolt carrier group is able to be installed in both semi-automatic and full auto firearms.
APF products are 100% made in the USA to ensure that you are getting the best products on the market. These products are manufactured and tested to the highest quality standards by the American work force.