Sons of Liberty AR-15 M16 Profile 5.56/300 BLK Bolt Carrier Group - Nickel Teflon Coating (NTC) - $199.95

Description

Sons of Liberty goes to show that in order to make the best products in the industry, you don't have to add bells and whistles. It takes consistently delivering a product that performs to a professional standard. That is what SOLGW does with their milspec line of components.
Bolt
Precision machined from Carpenter Technology No. 158 chrome-nickel alloy
Heat treated per mil-spec,
Shot peened per ASTM B851/SAE AMS2430S,
Vibratory tumbled
Individual high pressure/proof (HP) test
Full Auto test fired at assembly
Individual magnetic particle inspection ASTM E1444/E1444M (MP)
Nickel Teflon Coated
Markings deep laser engraved (SP=Shot Peened, HP=High Pressure Tested, MP=Magnetic Particle Inspection.)
Extractor
Precision machined from 4340 tool steel alloy per SAE AMS6415T/AMS6484D (vs 4140)
Heat treated
Shot peen per ASTM B851/SAE AMS2430S
Extractor Retaining Pin:
Precision machined and ground S7 Tool Steel
Heat treated per ASTM A681-08
Shot peened per mil-spec print
Manganese phosphate
Extractor Spring
Tactical Springs/Sprinco 5 coil, ASTM Grade A401 Chrome Silicon wire stock
Heat treated
Stress relieved, Molybdenum-Disulfide infused
Cryogenic processed (Hidden post winding)
Mil-spec black insert/synthetic elastomer extractor buffer (nitrile-butadiene, shore hardness 80+/-5 durometer per MIL-PRF-6855)
Ejector
S7 Tool Steel
Heat treated per ASTM A681-08
Shot peened per Mil-Spec
Nickel Teflon Coated
Ejector Spring:
Heat treated
Mil Spec
Gas Rings
Standard stainless steel per Mil-Spec X3
Carrier
Machined from AISI 8620 aircraft quality alloy per ASTM A108/A322-13
Full auto profile
Heat-treated
Carburized/strain relieved, hard chrome bore
Precision ground gas key interface
Sons of Liberty Battle Flag logo deep laser engraved
Nickel Teflon Coated
Gas Key
Machined from 4130 Chromoly steel alloy per ASTM A108/A322-13
Heat-treated; hard chrome internal
Nickel Teflon Coated
Permatex sealed
Grade 8 hex screws torqued and staked Hidden per mil-spec
Cam Pin
Precision machined 4340 Chromoly steel alloy per SAE AMS6415T/AMS6484D
Heat-treated/processed per mil-spec
Nickel Teflon Coated
Solid film lubricant applied and cured per mil-spec
Firing Pin
Precision machined 8640 steel alloy
Heat treated/processed per mil-spec
Hard chrome plate
Firing Pin Retaining Pin
Precision machined from 1038 carbon steel
Heat-treated/processed per mil-spec
Manganese phosphate
SKU:27982
UPC:669185246391
MPN:SOLGWBCG556-NTC