Reliability Enhancement Kit H1
$444.00 at MidwayUSA · 7 stores
In stock
Best price
$255.00at OpticsPlanet
In stock checked Nov 14, 2026
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
- Geissele Automatics
Compatibility
- Caliber
- 5.56 mm NATO
- Platform
- AR-15
Materials and features
- Color
- Black
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet Best price | $255.00checked Nov 14, 2026 | In stock | Buy at OpticsPlanet | |
| MidwayUSA | $255.00checked Nov 14, 2026 | In 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: $216.75 at MidwayUSA. Dashed line = out of stock. Tracking since Oct 18, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| MidwayUSA | $255.00 | $216.75 | $255.00 |
| OpticsPlanet | $255.00 | $229.50 | $255.00 |
Since Oct 18, 2026.
About this part
The Geissele Bolt Assembly Stress Proof is a 5.56 / .223 bolt carrier group from Geissele Automatics. It's sold by 2 stores, all at $255.00. The lowest in-stock price in the last 30 days was $216.75 at MidwayUSA.
From the manufacturer
Geissele Bolt Assembly Stress Proof. Each Forged bolt is rigorously inspected high pressure tested mag particle inspected and Nanoweapon coated. Specifications for Geissele Stress Proof Bolt Assembly: Manufacturer: Geissele Color: Black Caliber: 5.56x45mm NATO .223 Remington Gun Make: AR Platform Gun Model: AR-15 Included Accessories: Extractor Package Contents: Geissele Stress Proof Bolt Assembly What firearm models does the manufacturer say Geissele Stress Proof Bolt Assembly is compatible with? The manufacturer suggests that Geissele Stress Proof Bolt Assembly is compatible with AR-15Geissele 05-2991: Bolt Assembly Stress Proof
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