Kaw Valley Precision Blow Back Bolt Carrier Group BCG .45 ACP Black Medium
$144.99 at GunMag Warehouse · 2 stores
In stock
Best price
$150.65at Brownells
Out of stock checked Oct 22, 2026
In stock now instead
- Kaw Valley Precision Blow Back Bolt Carrier Group BCG .45 ACP B… $144.99at GunMag Warehouse
- Angstadt Arms Bolt Carrier Group BCG .45 ACP Black $159.00at MidwayUSA
- R&D Precision 45 ACP Full Auto BCG Black $99.99at OpticsPlanet
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells | $150.65checked Oct 22, 2026 | Out of stock | Buy at Brownells |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Similar bolt carrier groups in stock
This part is out of stock at every store we track. These similar bolt carrier groups are in stock, with today's prices.
Angstadt Arms Bolt Carrier Group BCG .45 ACP Black
$159.00 at MidwayUSA · 6 stores
In stock
R&D Precision 45 ACP Full Auto BCG Black
$99.99 at OpticsPlanet
In stock Sale
Price history
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $150.65 | $150.65 | $150.65 |
Since Sep 28, 2026.
About this part
The AR-15 SD-Bu45 Bolt Carrier .45ACP Black is a .45 ACP bolt carrier group from Stern Defense. One store lists it, Brownells at $150.65.
Fits and works with
- Caliber
- .45 ACP · Shop matching ammo
- Bolt
- .45 ACP · Bolt carrier groups
Specifications
- Manufacturer
- Stern Defense
- Platform
- AR-9
- Caliber
- .45 ACP
- Material
- Steel
From the manufacturer
Having a .45 ACP pistol-caliber carbine requires the use of a bolt that's designed to provide reliable operation with the round, and the Stern Defense AR-15 SD-BU45 Bolt Carrier is purpose-built to provide the reliable, dependable, durable operation needed in a big-bore PCC. Each Stern Defense AR-15 SD-BU45 Bolt Carrier is machined from 8620 AISI steel and features a 4140 billet-steel extractor that ensures ejection every time. The carrier features a Glock cut and is treated with a manganese-phosphate finish. The bolt works in all mil-spec and Glock-pattern AR-15 upper receivers and is compatible with standard AR-15 charging handles. The carrier includes the firing pin, spring, r Mfg: Stern Defense
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