Best price
$29.99at MidwayUSA
In stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| MidwayUSA Best price | $29.99checked Oct 1, 2026 | In stock | Buy at MidwayUSA | |
| Ammunition Depot | $36.49checked Oct 1, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $29.63Salechecked Oct 1, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $34.39checked Oct 1, 2026 | Check store | Buy at Palmetto State Armory | |
| Brownells | $32.99checked Oct 1, 2026 | Out of stock | Buy at Brownells | |
| OpticsPlanet | $34.99Salechecked Oct 1, 2026 | Out of stock | Buy at OpticsPlanet |
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: $29.99 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $36.49 | $36.49 | $36.49 |
| Battlehawk Armory | $29.63 | $29.63 | $29.63 |
| Brownells | $32.99 | $32.99 | $32.99 |
| MidwayUSA | $29.99 | $29.99 | $29.99 |
| OpticsPlanet | $34.99 | $33.99 | $34.99 |
| Palmetto State Armory | $34.39 | $34.39 | $34.39 |
Since Sep 28, 2026.
About this part
The 9mm Bolt Replacement Kit is an AR-9 upper part from Stern Defense. It's sold by 6 stores (2 in stock), from $29.63 to $36.49. The lowest in-stock price in the last 30 days was $29.99 at MidwayUSA.
Fits and works with
- Caliber
- 9mm · Shop matching ammo
- Bolt
- 9mm · Bolt carrier groups
Specifications
- Manufacturer
- Stern Defense
- Type
- Bolt Assembly
- Platform
- AR-9
From the manufacturer
Tons of rounds down range? Looking to rebuild that bolt? Look no further! Included: Custom 4140 billet extractor providing superior ejection. Extractor pin. Extractor spring. Firing pin. Firing pin Spring. Firing pin retaining pin. Note: Designed to be used with the SD BU9 only. Mfg: Stern Defense
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