AR-15/M4 Receiver Extension
$66.50 at Brownells · 5 stores
In stock
Best price
$68.00at Brownells
In stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $68.00checked Oct 1, 2026 | In stock | Buy at Brownells | |
| MidwayUSA | $68.00checked Oct 1, 2026 | In stock | Buy at MidwayUSA | |
| Battlehawk Armory | $52.72Salechecked Oct 1, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $68.99checked Oct 1, 2026 | Check store | Buy at Palmetto State Armory | |
| OpticsPlanet | $68.00Salechecked 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: $68.00 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Battlehawk Armory | $52.72 | $52.72 | $52.72 |
| Brownells | $68.00 | $68.00 | $68.00 |
| MidwayUSA | $68.00 | $68.00 | $68.00 |
| OpticsPlanet | $68.00 | $68.00 | $68.00 |
| Palmetto State Armory | $68.99 | $68.99 | $68.99 |
Since Sep 27, 2026.
About this part
The AR-15 Premium Buffer Tube Black is an AR-15 buffer part from Geissele Automatics. It's sold by 5 stores (2 in stock), from $52.72 to $68.99. The lowest in-stock price in the last 30 days was $68.00 at Brownells.
Specifications
- Manufacturer
- Geissele Automatics
- Type
- Buffer Tube
- Platform
- AR-15
- Material
- Aluminum
From the manufacturer
The Geissele Premium Mil-Spec Buffer Tube is machined from quality 7075-T6 Aluminum and finished in Type 3 Hardcoat Anodize. This rigid and durable buffer tube conforms to all mil-spec standards and features 6 stock positions. This carbine length and mil-spec diameter Premium Buffer Tube is made in the USA and weighs in at 3.7oz, making it the perfect fit for your AR-15 lower and ensuring compatibility with most mil-spec diameter quality AR-15 stocks. Included in the package is a high-quality, mil-spec castle nut and end plate. Mfg: Geissele Automatics
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