NBS .223/5.56/300 BLK Complete Bolt Carrier Group - Nickel Boron - w/ Logo

Name: NBS .223/5.56/300 BLK Complete Bolt Carrier Group - Nickel Boron - w/ Logo
Brand: NBS

NBS · Bolt Carrier Group

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Best price

$125.95at Dirty Bird

checked Oct 31, 2026

Buy at Dirty Bird

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Where to buy

Store	Price	Availability	Buy	Add to build
Dirty Bird Best price	$125.95checked Oct 31, 2026	Check store	Buy at Dirty Bird
AR15Discounts	$139.95checked Oct 31, 2026	Check store	Buy at AR15Discounts

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Dashed line = out of stock. Tracking since Oct 28, 2026.

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Store	Latest	Lowest	Highest
AR15Discounts	$139.95	$139.95	$139.95
Dirty Bird	$125.95	$125.95	$125.95

Since Oct 28, 2026.

About this part

The NBS .223/5.56/300 BLK Complete Bolt Carrier Group - Nickel Boron - w/ Logo is an AR-15 bolt carrier group from NBS. It's sold by 2 stores, from $125.95 to $139.95.

Fits and works with

Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups

Specifications

Manufacturer: NBS
Platform: AR-15
Caliber: 300 Blackout
Finish: Nickel Boron
Material: Steel

From the manufacturer

NBS Nickel Boron Bolt Carrier Group for .223/5.56/300BLK Carrier M16 style (Auto) Machined from 8620 tool steel Heat treated to mil spec Bolt 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 spec Extractor Machined from S-7 shock resisting tool steel Heat treated to mil spec Shot peened Extractor spring is made of stainless steel music wire Firing Pin Machined from 17-4 stainless steel Heat treated to milspec Specifications Weight: 11.6 oz Length: 7.5 Finish: Nickel Boron (NiB) USA Made Covered by NBS Limited Lifetime Warranty