Alex Pro Firearms (APF) has been in business since 1976 crafting highly precise componentry. All APF parts are of the highest quality and 100% made in America.
APF has taken their line of precision AR components and added a Nickel Boron coating to provide increased lubricity and much greater wear resistance.
Material: 4140 Steel, Heat Treated, Shot Peen
Finish: Nickel Boron