K-SPEC Low Mass AR15 BCG- 5.56/300 Blackout

Description

• Designed to function reliably in the toughest conditions
• Optimized for both Suppressed and Un-suppressed use, All uses – All Conditions
• Dual Ejectors for enhanced reliability
• Angled Carrier Rail Cuts for flawless function in adverse conditions and prolonged suppressed use
• Downward Gas Ports to reduce gas blowback to shooter
• Full Auto Profile
• Permatex added between Gas Key and Carrier Mating Surface
• Carrier- 7075 Aircraft Grade Aluminum, outside rails, bolt runs, and gas bores ground to .0002 tolerances, Satin Gold Anodize Finish
• Bolt- C158 steel, outside diameters ground to .0002 tolerances, Shot Peened and MPI test, NP3 finish
• Firing Pin- 8740 steel, Swiss turned, heat treated, precision ground, chrome plated
• Cam Pin – 4140 steel, Swiss turned, heat treated, NP3 finish
• Extractor- 4140 steel, fully machined, Phosphate coated
• Extractor pin- S7 tool steel, ground, heat treated
• Ejector- S7 tool steel, ground, heat treated
• Gas key – 4130 steel, heat treated, Chrome Lined NP3 finish, secured with T25 torx fasteners, torqued to spec, staked with  hydraulic staking machine
• 6.2 oz