Built for the most demanding applications, the Sons of Liberty Gun Works 5.56 NATO Bolt Carrier Group (BCG) is meticulously crafted from premium materials and subjected to rigorous quality control measures. This BCG boasts a Carpenter Technology No. 158 chrome-nickel alloy bolt, 4340 tool steel extractor, and S7 tool steel ejector, ensuring exceptional strength and wear resistance.
Features:
- Bolt: Carpenter Technology No. 158 chrome-nickel alloy
- Extractor: 4340 tool steel (superior to 4140)
- Ejector: S7 tool steel
- Carrier: AISI 8620 aircraft-grade alloy
- Gas Key: 4130 Chromoly steel with hard chrome interior
- Magnetic particle inspected, high pressure tested, shot peened
- Full auto test fired at assembly
- Mil-spec and ASTM compliance
- Heat treated for optimal strength
Bolt MaterialCarpenter 158 Steel
BrandSons of Liberty Gun Works
Caliber Gauge5.56 NATO
Carrier FinishChrome
Carrier Material8620 Carpenter Steel
Carrier StyleM16 Bolt Carrier
High Pressure TestedHigh Pressure Tested
Magnetic Particle InspectMagnetic Particle Inspected
PlatformAR-15
Determined at checkout.
