.308 AR Receiver Extension
$59.99 at OpticsPlanet · 7 stores
In stock Sale
Best price
$66.50at Brownells
In stock Lowest in 30 dayschecked Nov 10, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $66.50checked Nov 10, 2026 | In stock | Buy at Brownells | |
| Ammunition Depot | $73.99checked Nov 10, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $66.50checked Nov 10, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $78.99checked Nov 10, 2026 | Check store | Buy at Palmetto State Armory | |
| OpticsPlanet | $67.99Salechecked Nov 10, 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: $66.50 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $73.99 | $73.99 | $73.99 |
| Battlehawk Armory | $66.50 | $66.50 | $66.50 |
| Brownells | $66.50 | $66.50 | $66.50 |
| OpticsPlanet | $67.99 | $67.99 | $69.99 |
| Palmetto State Armory | $78.99 | $66.50 | $78.99 |
Since Sep 27, 2026.
About this part
The AR-15/M4 Receiver Extension is an AR-15 buffer part from Forward Controls Design. It's sold by 5 stores (2 in stock), from $66.50 to $78.99. The lowest in-stock price in the last 30 days was $66.50 at Brownells.
Specifications
- Manufacturer
- Forward Controls Design
- Type
- Buffer Tube
- Platform
- AR-15
- Material
- Aluminum
From the manufacturer
REF (Receiver Extension, carbine, FCD) is a 6 position, AR15/M4 standard carbine receiver extension (NOT A5 compatible). Made from extruded 7075 aluminum with rolled threads and dry film lubed interior, REF differs from most carbine receiver extensions thusly: Additional drain holes in the 2nd and 5th latch positions, in addition to the TDP spec carbine RE drain hole at the end of the RE. Laser engraved stock latch position indicators on both sides. Cerakoted. Forward Controls Design is not known for making modifications to TDP spec components just to be different. Different is just that, different isn't better. REF follows FCD's design philosophy, functi Mfg: Forward Controls Design
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