Brn-4/Hk416 Bolt Assembly
$79.99 at Brownells
In stock Sale
Best price
$60.99at GunMag Warehouse
In stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| GunMag Warehouse Best price | $60.99checked Oct 1, 2026 | In stock | Buy at GunMag Warehouse | |
| Ammunition Depot | $76.49checked Oct 1, 2026 | In stock | Buy at Ammunition Depot | |
| Brownells | $77.69checked Oct 1, 2026 | In stock | Buy at Brownells | |
| OpticsPlanet | $83.49Salechecked Oct 1, 2026 | In stock | Buy at OpticsPlanet | |
| Palmetto State Armory | $73.99Salechecked Oct 1, 2026 | Check store | Buy at Palmetto State Armory | |
| CMMG | $79.95checked Oct 1, 2026 | Check store | Buy at CMMG | |
| MidwayUSA | $69.99checked Oct 1, 2026 | Out of stock | Buy at MidwayUSA |
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: $60.99 at GunMag Warehouse. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $76.49 | $76.49 | $76.49 |
| Brownells | $77.69 | $77.69 | $77.69 |
| CMMG | $79.95 | $79.95 | $79.95 |
| GunMag Warehouse | $60.99 | $60.99 | $60.99 |
| MidwayUSA | $69.99 | $69.99 | $69.99 |
| OpticsPlanet | $83.49 | $83.49 | $83.49 |
| Palmetto State Armory | $73.99 | $73.99 | $73.99 |
Since Sep 27, 2026.
About this part
The AR-15 Bolt Assembly 5.56mm is a 5.56 / .223 bolt carrier group from CMMG. It's sold by 7 stores (4 in stock), from $60.99 to $83.49. The lowest in-stock price in the last 30 days was $60.99 at GunMag Warehouse.
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
- CMMG
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
Replacement AR-15 Bolt Assembly, 5.56mm. Mfg: Cmmg
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