AR-15 NiB-X Complete Bolt

Name: AR-15 NiB-X Complete Bolt
Brand: WMD Guns
Availability: InStock

WMD Guns · Bolt Carrier Group

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Best price

$63.99at GunMag Warehouse

In stock checked Nov 6, 2026

Buy at GunMag Warehouse

Compare 8 stores

Fits and works with

Caliber: 300 Blackout · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups

Specifications

Manufacturer: WMD Guns
Platform: AR-15
Caliber: 300 Blackout
Finish: Nickel Boron
Material: Polymer

Where to buy

Store	Price	Availability	Buy
GunMag Warehouse Best price	$63.99checked Nov 6, 2026	In stock	Buy at GunMag Warehouse
Ammunition Depot	$64.99checked Nov 10, 2026	In stock	Buy at Ammunition Depot
OpticsPlanet	$68.59Salechecked Nov 12, 2026	In stock	Buy at OpticsPlanet
Brownells 17.76% off · ends Nov 15 · exclusions apply	$69.99checked Nov 13, 2026	In stock	Buy at Brownells
Battlehawk Armory	$59.76Salechecked Nov 10, 2026	Check store	Buy at Battlehawk Armory
Palmetto State Armory	$63.99Salechecked Nov 6, 2026	Check store	Buy at Palmetto State Armory
GrabAGun	$68.79Salechecked Nov 12, 2026	Check store	Buy at GrabAGun
Kentucky Gun Co	$63.00checked Nov 13, 2026	Out of stock	Buy at Kentucky Gun Co

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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Lowest in-stock price in the last 30 days: $63.00 at Kentucky Gun Co. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Ammunition Depot	$64.99	$64.99	$69.99
Battlehawk Armory	$59.76	$57.02	$59.76
Brownells	$69.99	$69.99	$69.99
GrabAGun	$68.79	$68.79	$68.79
GunMag Warehouse	—	$63.99	$63.99
Kentucky Gun Co	$63.00	$63.00	$63.05
OpticsPlanet	$68.59	$68.59	$71.59
Palmetto State Armory	—	$63.99	$63.99

Since Sep 27, 2026.

About this part

The AR-15 NiB-X Complete Bolt is a 300 Blackout bolt carrier group from WMD Guns. It's sold by 8 stores (4 in stock), from $59.76 to $69.99. The lowest in-stock price in the last 30 days was $63.00 at Kentucky Gun Co.

From the manufacturer

Nickel Boron exterior gives this bolt an incredibly hard finish that protects against wear and corrosion for the ultimate in durability. The extreme smoothness and built-in lubricity of the coating also reduces friction and gives carbon deposits nowhere to stick, so bolt can be easily wiped clean with a cloth or nylon brush. Comes complete with ejector, extractor, and gas rings installed. Mfg: Wmd Guns SPECS: Carpenter 158 steel, NiB-XA(R) coating. Ejector, extractor, and gas rings included. Fits .223 5.56mm, 300 AAC Blackout, and similar AR platforms.