Brn-180 Gen 1/2 Complete Bolt Assembly
$111.99 at Brownells
In stock Sale
Best price
$109.95at AR15Discounts
checked Oct 31, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| AR15Discounts Best price | $109.95checked Oct 31, 2026 | Check store | Buy at AR15Discounts | |
| Dirty Bird | $119.95checked Oct 31, 2026 | Check store | Buy at Dirty Bird |
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
Dashed line = out of stock. Tracking since Oct 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $109.95 | $109.95 | $109.95 |
| Dirty Bird | $119.95 | $119.95 | $119.95 |
Since Oct 28, 2026.
About this part
The NBS AR-15 .223/5.56 Bolt Carrier Group - Phosphate is a 5.56 / .223 bolt carrier group from NBS. It's sold by 2 stores, from $109.95 to $119.95.
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
- NBS
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Finish
- Phosphate
- Material
- Steel
From the manufacturer
The NBS 5.56 Bolt Carrier Group for AR-15 rifles is made from high quality materials with quality assurance measures like high pressure testing and magnetic particle inspecting. The bolt assembly is machined from 9310 steel and tested to ensure it can withstand thousands of high-pressure rounds. The Carrier assembly is machined from 8620 steel and the entire BCG is magnetic particle inspected to ensure every dimension is as precise at can be. The Manganese Phosphate coating on this AR-15 bolt carrier group will increase in lubricity as it absorbs oil and combines with the natural lubricity of carbon to ensure your rifle will run reliably. Features: Compatible with 5.56 NATO, .223, and .300 BLK M16 cut and full auto rated 8620 steel carrier 9310 steel bolt MPI and HPT Manganese Phosphate coating Properly staked gas key Chrome lined gas key and firing pin channel Shot peened bolt face Black O-ring extractor insert
Similar bolt carrier groups
5.56x45 NATO Chrome Plated Bolt For AR-15
$112.46 at OpticsPlanet · 7 stores
In stock Sale
FZ 5.56 Black Nitride BCG-NH
$105.21 at Kentucky Gun Co · 8 stores
In stock
5.56x45mm NATO Bolt Assembly Steel For AR-15
$104.49 at Ammunition Depot · 4 stores
In stock
MP Brn AR-15/M16 5.56mm Bolt Carrier Group, Mpi, Nickel Boron
$116.42 at Brownells
In stock Sale
M16 Bolt Carrier Group 5.56x45 NATO Chrome & Phosphate BLK
$116.96 at Ammunition Depot · 7 stores
In stock
Rating
No ratings yet
Log in to rate this part.
Comments
Please log in to read and leave comments.