Best price
$299.95at Dirty Bird
checked Oct 31, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Dirty Bird Best price | $299.95checked Oct 31, 2026 | Check store | Buy at Dirty Bird | |
| AR15Discounts | $314.95checked 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 | $314.95 | $314.95 | $314.95 |
| Dirty Bird | $299.95 | $299.95 | $299.95 |
Since Oct 28, 2026.
About this part
The NBS 16" 6.8 SPC II Carbine Quad Rail Upper Assembly is a 16" 6.8 SPC upper receiver from NBS. It's sold by 2 stores, from $299.95 to $314.95.
Fits and works with
- Caliber
- 6.8 SPC · Shop matching ammo
- Bolt
- 6.8 SPC / .224 Valkyrie · Bolt carrier groups
- Gas system
- Carbine · Handguards
- Barrel length
- 16" · Handguards
Specifications
- Manufacturer
- NBS
- Platform
- AR-15
- Caliber
- 6.8 SPC
From the manufacturer
We set out to make one of the most affordable complete uppers, without sacrificing the integrity of the complete upper, and most important the rifle. This upper features a 16 NBS M4barrel chambered in 6.8 SPC with a 1:10 twist and a carbine gas system. With the NBS line we wanted to make sure that we used quality products that wouldn't break the bank. This means using a nitrided steel gas block from APOC Armory as opposed to aluminum and using reputable internals like one of our classic NBS 16 carbine Barrels. Made in the USA Lifetime Warranty Upper Receiver NBS - 7075 Aluminum - Pairs beautifully with any mil-spec lower - M4 Feedramps Barrel NBS 16" 6.8 SPC II M4 Contour 1:10 Carbine 41V50 Barrel - Parkerized Gas System Carbine Length - APOC Armory Nitrided Steel Gas Block - Stainless Steel Carbine Length Gas Tube Handguard 12 Free Float Quad Rail - Black Muzzle Device KAK Industry 1/2-36 Slimline Micro Flash Can
Rating
No ratings yet
Log in to rate this part.
Comments
Please log in to read and leave comments.