Original price was: $129.00.Current price is: $99.00.


FULL AUTO RATED M16 / AR15 NITRIDE BCG ( Check it out )


BCG Includes:

  • High Pressure Tested (HPT)
  • Magnetic Particle Inspected (MPI)
  • Carrier machined from 8620 alloy, full auto profile, heat treated, Nitrided
  • Gas Key machined from 4130 chromoly steel alloy, heat treated and Nitrided
  • Bolt precision machined from 9310 alloy; carburized/case hardened, shot peened and Nitrided
  • 4140 Tool steel Extractor alloy, hardened and Nitrided
  • Extractor Pin, AMS6440/52100 Bearing grade steel retaining pin
  • 5 coil, Extractor Spring, ASTM Grade A 228 wire stock, stress relieved, Tensile Strength of 393,000 PSI Max, 80 Durometer Per AMS-R-6855 black insert
  • Extractor Spring O-Ring, Viton (FKM) Fluoropolymer Elastomer
  • S7 shock resistant tool steel alloy Ejector, hardened, shot peened per ASTM B851/SAE AMS2430, manganese phosphate
  • ASTM Grade A 228 wire stock Ejector Spring, heat treated, stress relieved – Tensile Strength of 376,000 PSI Minimum
  • Gas Rings, Steel Corrosion Resistant Per AMS 5906 – X3
  • Firing Pin, precision machined 8740 steel alloy, heat treated, precision ground & hard chrome plate
  • Firing Pin Retaining Pin, carbon steel ASTM A510, heat treated & manganese phosphate
  • Socket Cap Head Screw, steel, grade 4037 per ASTM, heat treated & manganese phosphate 2x
  • Gas Key is installed with Permatex aviation gasket sealer, torqued to 55-foot pounds, pneumatically staked
  • Cam Pin, precision machined 4340 chromoly steel alloy, heat treated and Nitrided




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