Who doesn’t like a nice quad rail This upper also features a 16″ BCA barrel chambered in 5.56 NATO with a 1:7 twist and a carbine length gas system. With the NBS line we wanted to build an affordable upper assembly without cutting corners. This means using a nitrided steel gas block from APOC Armory as opposed to aluminum, providing an upgraded extended latch charging handle and using reputable internals like the proven APOC Armory Black Nitride BCG paired with a Bear Creek 16″ Carbine Barrel.
Anderson or Aero Precision (depending on availability)
Bear Creek 16″ 5.56 NATO 1:7 Twist Carbine Parkerized
|Bolt & Carrier Group|
APOC Armory Black Nitride M16 Bolt Carrier Group .223/5.56
APOC Armory Extended Latch
12″ Free Float Quad Rail – Black
|Muzzle Device||Mil-Spec A2 Birdcage|