The Sons Of Liberty Gun Works AR-15 Bolt Assembly is expertly designed for optimal performance and durability tailored for the 5.56mm NATO cartridge. Its robust construction ensures reliable cycling and consistent function making it an ideal choice for AR-15 enthusiasts seeking superior quality. Finished in a sleek black this bolt assembly not only promises enhanced aesthetics but also provides excellent wear resistance. Whether you're upgrading your current setup or building a new rifle this AR-15 bolt assembly delivers precision engineering and dependable operation for all your shooting needs.