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AR-15/M16 Bolt Carrier Group Assembly

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Weight:
1.00 LBS
$189.99
AR-15 Bolt Carrier Group Assembly

AR-15/M16 Bolt Carrier Group, BCG is a heart and soul of your AR-15 when it comes to Bolt Carrier Groups you want the top shelf quality BCG. Lucky for you Ormond Arms has quality machined mil spec bolts.

BCG Includes:

  • Bolt precision machined from 9310 alloy; carburized/case hardened & shot peened
  • Ultrasonically cleaned and Nitrided
  • Extractor, machined 4140 Tool steel alloy, hardened and Nitrided
  • Extractor Pin, precision machined and ground AMS6440/52100 Bearing grade steel retaining pin
  • Extractor Spring, 5 coil, 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
  • Ejector, S7 shock resistant tool steel alloy, hardened, shot peened per ASTM B851/SAE AMS2430, manganese phosphate
  • Ejector Spring, ASTM Grade A 228 wire stock, heat treated, stress relieved – Tensile Strength of 376,000 PSI Minimum
  • Gas Rings, Steel Corrosion Resistant Per AMS 5906 – X3
  • Carrier machined from 8620 alloy, full auto profile, heat treated, ultrasonically cleaned and Nitrided
  • Gas Key machined from 4130 chromoly steel alloy, heat treated and Nitrided
  • 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 steaked and break away tests performed to spec
  • Cam Pin, precision machined 4340 chromoly steel alloy, heat treated and Nitrided
  • 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

IMPORTANT NOTE (Please Read). 

We allow 48 hours from time of package delivery to inspect your order and contact us of any damage or missing parts. We will not be held liable after that for any replacement claims. We appreciate your business and understanding of our company policy.

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  • 5
    bolt carrier

    Posted by Don Greer on Nov 17th 2020

    works great, would buy from again