Home / Bolt Carrier Groups / AR15 Discounts / NBS .223/5.56/300 BLK Complete Bolt Carrier Group - Nickel Boron - w/o Logo
NBS .223/5.56/300 BLK Complete Bolt Carrier Group - Nickel Boron - w/o Logo
Lowest Listed Price
$149.95
MSRP
$149.95
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Updated
Aug 26, 2026
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Specifications
Brand
MPN
BCG-NIB
Description
NBS Nickel Boron Bolt Carrier Group for .223/5.56/300BLKCarrier M16 style (Auto) Machined from 8620 tool steel Heat treated to mil specBolt Machined from 9310 tool steel Heat treated to military specifications Shot Peened MPI (Mag Particle Inspected)Gas Key Machined from 17-4 Stainless Steel Heat treated to mil specExtractor Machined from S-7 shock resisting tool steel Heat treated to mil spec Shot peened Extractor spring is made of stainless steel music wireFiring Pin Machined from 17-4 stainless steel Heat treated to milspecSpecifications Weight: 11.6 oz Length: 7.5 Finish: Nickel Boron (NiB) USA Made Covered by NBS Limited Lifetime Warranty
