Description
K-SPEC: Mil-Spec, Enhanced.
KAK Industry’s 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 Industry’s proprietary Down Vent configuration, venting gas downward instead of out at the shooter’s 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.









