APF Armory Bolt Assembly AR-15 223 Remington, 5.56x45mm Nickel Boron

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.