Enhance your AR-15's performance with the Guntec USA GT-BCG-LM Nitride Skeletonized Low Mass Bolt Carrier Group. Designed for precision and improved cycling, this lightweight component is engineered to deliver exceptional reliability and lower recoil for quick follow-up shots. Constructed from durable materials and featuring a unique skeletonized design, the low mass bolt carrier ensures faster cycling and reduces weight, contributing to an overall enhanced shooting experience. 8620 Steel Bolt Carrier Skeletonized Low Mass Design QPQ- Salt Bath Nitride Finish Grade 8 Screws to Mil-spec 9310 Bolt MPI (Magnetic Particle Inspected) USA Made Smooth Finish To Reduce Friction 1 Year Warranty Hydraulically Staked CL Key Heat Treated For Heavy Duty use Compatible With Dust Covers Weight: 8.6 Oz Upgrade your rifle today for optimal performance with the Guntec USA GT-BCG-LM.