Andro Corp Industries AR15/M16 Bolt Carrier Group BCG Nitride Enhanced Black

Andro Corp Industries AR15/M16 Bolt Carrier Group BCG Nitride Enhanced Black. Andro Corp Industries has been manufacturing this Bolt Carrier Group BCG since its inception and for good reason. It can comfortably handle everything from weekend plinking to fully automatic machine gun fire for thousands of rounds ensuring you have accurate firing and chambering over and over again. With a black nitride finish the Andro Corp Industries AR 15 Bolt Carrier Group BCG matches your rifle perfectly and performs at the highest quality. Specifications for Andro Corp Industries AR15/M16 Bolt Carrier Group (BCG) Nitride: Manufacturer: Andro Corp Industries Color: Black Finish: Nitride Fabric/Material: 9310 Alloy 8620 Alloy Gun Make: AR Platform Gun Model: M16 AR-15 Condition: New Bolt Material: 9310 Steel Carrier Material: 8620 Steel Country of Origin: USA Features of Andro Corp Industries AR15/M16 Bolt Carrier Group BCG Nitride Bolt precision machined from 9310 alloy Carrier machined from 8620 alloy Nitride Coating HP/MPI Bolt Enhanced beveling to reduce friction Viton O-ring Upgraded Extractor Full Auto Rated Package Contents: Andro Corp Industries AR15/M16 Bolt Carrier Group Nitride 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 393000 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 376000 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 steaked Cam Pin precision machined 4340 chromoly steel alloy heat treated and Nitrided Andro Corp Industries AR15BCGEN: AR15/M16 Bolt Carrier Group Nitride Enhanced Black