9mm Complete Bolt Black
$129.99 at Brownells · 4 stores
In stock
Stern Defense 9MM Glock/Colt Complete Bolt Carrier Group SD BU9 - Melonite
Stern Defense · Bolt Carrier Group
No ratings yetBest price
$129.99at MidwayUSA
In stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| MidwayUSA Best price | $129.99checked Oct 1, 2026 | In stock | Buy at MidwayUSA | |
| Rainier Arms | $129.99not checked recently | Check store | Buy at Rainier Arms | |
| Palmetto State Armory | $146.99Salechecked Oct 1, 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: $129.99 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| MidwayUSA | $129.99 | $129.99 | $129.99 |
| Palmetto State Armory | $146.99 | $146.99 | $146.99 |
Since Sep 28, 2026.
About this part
The Stern Defense 9MM Glock/Colt Complete Bolt Carrier Group SD BU9 - Melonite is a 9mm bolt carrier group from Stern Defense. It's sold by 3 stores (1 in stock), from $129.99 to $146.99. The lowest in-stock price in the last 30 days was $129.99 at MidwayUSA.
Fits and works with
- Caliber
- 9mm · Shop matching ammo
- Bolt
- 9mm · Bolt carrier groups
Specifications
- Manufacturer
- Stern Defense
- Platform
- AR-9
- Caliber
- 9mm
From the manufacturer
Made with 8620 AISI steel and boasting a Melonite finish, the Stern bolt fits into Mil-Spec and Glock-pattern upper receivers. It functions with Colt SMG, Glock magazines and it's fully compatible with standard AR15/M16 charging handles. Comes fully assembled with all sub-components installed, including firing pin/spring/retaining pin, extractor, and extractor spring. Also included in bolt assembly is a propriety center and roll pins.Technical Information: Made in U.S.A. Constructed from 8620 AISI steel. Custom 4140 billet extractor providing superior ejection. Glock cut. Coating: Melonite Weight: 15.5 OZ. 9MM
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