LANTAC ENHANCED BOLT CARRIER GROUP 223/556

Weight 11.7oz – Forward Porting enlarged vents – Balanced flared boss – 8620 Carrier Heat Treated Hard Turned Chrome Lined – MPI Carpenter 158 Bolt Shot Peened Hard Turned / Ground – NiB UCT EXO Coating – CP-R360 Domed Cam Pin – Mil-Spec Gas Rings – Mil-Spec Staked Gas Key – Grade 8 Hardened Fasteners – All Hard Chrome surfaces are to MIL-STD-171 1.2.2.2 – Shot Peening is conducted with S110 shot – Established by Almen Gage A-2 strip .006 -.008