AIM Sports Inc AR15 Pistol Buffer Tube Black Small
$16.99 at Ammunition Depot · 4 stores
In stock
NBS Mil-Spec Carbine Receiver Extension (Castle) Nut - Stainless
No ratings yetBest price
$16.95at AR15Discounts
checked Oct 31, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| AR15Discounts | $16.95checked Oct 31, 2026 | Check store | Buy at AR15Discounts |
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
Dashed line = out of stock. Tracking since Oct 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $16.95 | $16.95 | $16.95 |
Since Oct 28, 2026.
About this part
The NBS Mil-Spec Carbine Receiver Extension (Castle) Nut - Stainless is an AR-15 buffer part from NBS. One store lists it, AR15Discounts at $16.95.
Fits and works with
- Buffer system
- Carbine · Buffers and springs
Specifications
- Manufacturer
- NBS
- Type
- Buffer Tube
- Platform
- AR-15
- Material
- Steel
From the manufacturer
Mil-spec carbine castle nut/lock ring for securing lock plate on an adjustable stock for AR-15, M4. 416 Stainless Steel Notched for Staking Weight: 0.4 ounces 100% American Made
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