K-Spec M16 .224 Valkyrie /6.8 Special Bolt Carrier Group - K-Spec M16 Bcg .224 Valkyrie/6.8 Spc Chrome-Phosphate Black

K-SPEC: Mil-Spec, Enhanced. KAK Industrys signature design for unrivaled performance and unparalleled reliability, all K-SPEC Enhanced BCGs retain mil-spec dimensions with added Slotted Angle Carrier Rails (sand cutters) and Dual Ejector system. This .224 Valkyrie / 6.8 SPC model features KAK Industrys proprietary Down Vent configuration, venting gas downward instead of out at the shooters face. This redirected gas system means a quieter, less gassy shooting experience. All KAK Industry BCGs feature a M16 (Full Auto) carrier profile, meticulously machined from 8620 steel, properly heat treated and ground to exact tolerances. Other components include: Single piece billet-machined 4140 extractor, phosphate coated for Increased reliability and corrosion resistance. 4340 phosphate coated cam pin. 8740 chrome plated firing pin, precision ground and heat treated. S7 Tool Steel ejector and extractor retaining pin. 4130 Steel gas key, phosphate-coated and chrome lined, precision staked and Permatex sealed to the carrier KAK Carrier Key Screws - T25 drive, Grade 8, Properly Heat Treated.