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 |
