AR-308 Rifle Buffer Tube Assembly
$63.87 at Brownells · 6 stores
In stock
AR-15 Buffer Tube Assembly Carbine Mil-Spec 6-Position
CMC Triggers · Buffer Tubes & Springs
No ratings yetBest price
$64.99at GunMag Warehouse
In stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| GunMag Warehouse Best price | $64.99checked Oct 1, 2026 | In stock | Buy at GunMag Warehouse | |
| OpticsPlanet | $69.99Salechecked Oct 1, 2026 | In stock | Buy at OpticsPlanet | |
| Ammunition Depot | $76.49checked Oct 1, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $59.99checked Oct 1, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $106.99checked Oct 1, 2026 | Check store | Buy at Palmetto State Armory | |
| Brownells | $49.99checked Oct 1, 2026 | Out of stock | Buy at Brownells |
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: $64.99 at GunMag Warehouse. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $76.49 | $76.49 | $76.49 |
| Battlehawk Armory | $59.99 | $59.99 | $59.99 |
| Brownells | $49.99 | $49.99 | $49.99 |
| GunMag Warehouse | $64.99 | $64.99 | $64.99 |
| OpticsPlanet | $69.99 | $69.99 | $69.99 |
| Palmetto State Armory | $106.99 | $106.99 | $106.99 |
Since Sep 28, 2026.
About this part
The AR-15 Buffer Tube Assembly Carbine Mil-Spec 6-Position is an AR-15 buffer part from CMC Triggers. It's sold by 6 stores (3 in stock), from $49.99 to $106.99. The lowest in-stock price in the last 30 days was $64.99 at GunMag Warehouse.
Fits and works with
- Buffer system
- Carbine · Buffers and springs
Specifications
- Manufacturer
- CMC Triggers
- Type
- Buffer Tube
- Platform
- AR-15
- Material
- Aluminum
From the manufacturer
During an AR build, if you've picked up a lower parts kit, then you're almost ready to finish up a lower receiver! The only thing left is to add a buffer-tube assembly that allows you to put the stock of your choice on your lower receiver, and CMC Triggers offers its AR-15 Buffer Tube Assembly for you to finish off that lower with ease. Each CMC Triggers AR-15 Buffer Tube Assembly provides a six-position carbine buffer tube machined from 7075-T6 aluminum to mil-spec dimensions and treated with a hard-anodized finish. Each buffer tube features drainage holes that allow water to escape when the gun is used in submerged or rainy environments, and the kit includes a high-quality, Mfg: Cmc Triggers
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