WMD Guns AR-15/M16/M4 Bolt Carrier Group BCG 5.56 NiB-X White
$159.99 at OpticsPlanet
In stock Sale
Best price
$149.50at Kentucky Gun Co
In stock checked Oct 21, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Kentucky Gun Co Best price | $149.50checked Oct 21, 2026 | In stock | Buy at Kentucky Gun Co | |
| GunMag Warehouse | $150.99checked Oct 21, 2026 | In stock | Buy at GunMag Warehouse | |
| OpticsPlanet | $159.49Salechecked Oct 21, 2026 | In stock | Buy at OpticsPlanet | |
| Ammunition Depot | $169.99checked Oct 21, 2026 | In stock | Buy at Ammunition Depot | |
| Brownells | $174.99checked Oct 21, 2026 | In stock | Buy at Brownells | |
| Battlehawk Armory | $135.20Salechecked Oct 21, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $150.99checked Oct 21, 2026 | Check store | Buy at Palmetto State Armory |
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
Lowest in-stock price in the last 30 days: $149.50 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 | $169.99 | $150.99 | $172.49 |
| Battlehawk Armory | $135.20 | $135.20 | $135.20 |
| Brownells | $174.99 | $174.99 | $174.99 |
| GunMag Warehouse | $150.99 | $150.99 | $150.99 |
| Kentucky Gun Co | $149.50 | $149.50 | $149.50 |
| OpticsPlanet | $159.49 | $159.49 | $159.49 |
| Palmetto State Armory | $150.99 | $150.99 | $150.99 |
Since Sep 27, 2026.
About this part
The Nickel Boron M16 NiB-X Bolt Carrier Group is a 5.56 / .223 bolt carrier group from WMD Guns. It's sold by 7 stores (5 in stock), from $135.20 to $174.99. The lowest in-stock price in the last 30 days was $149.50 at Kentucky Gun Co.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Specifications
- Manufacturer
- WMD Guns
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Finish
- Nickel Boron
- Material
- Steel
From the manufacturer
Each WMD bolt-and-carrier set is precisely machined from high-grade steel alloy to government M16 specs, then given WMD's proprietary NiB-XA(R) nickel boron coating that results in a super-smooth, harder-than-chrome surface. NiB-XA(R) reduces friction to the bare minimum and is impervious to corrosion and abrasion. The slick finish also keeps carbon from adhering, so clean up is much faster and easier than with standard parts. Ideal choice for 3-gun competitor sand other high-volume shooters. Available with a matching NiB-XA(R) coated hammer for the smoothest cycling. Also available as an M16 Bolt Carrier Group. Mfg: Wmd Guns SPECS: Carrier - 8620 carbon steel. Bolt - Carpenter 158 steel alloy. Both have Nickel boron finish, silver. Extractor includes black buffer, black O-ring, and spring. Fits mil-spec AR-15/M16 upper receiver. M16 carrier available.
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