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Mfg Item #: MIBCGTIN
Assembled Bolt Carrier Group for AR-15/M16 - 8620 M16 style carrier - Titanium Nitride coating - Properly heat treated - Final grind before plating - Carpenter 158 5.56/.223 bolt - Heat treated - Shot peened - Precision ground for perfect dimensions - H&M Black Nitride finish - MPI -Magnetic Particle Inspected - 4140 Billet Gas Key Titanium Nitride Coating Properly torqued with Grade 8 fasteners Properly staked to ensure reliability - 4140 Cam Pin Heat Treated H&M Black Nitride finish - Billet Machined Extractor - Machined from solid 4140 bar stock heat treated and shot peened - Phosphate coated for reliable extraction - Extractor insert included - O-Ring included - Firing pin precision machined from 17-4 H-900 Stainless Steel - 100% USA Made - Midwest Industries Limited Lifetime Warranty