Who doesn’t like a nice quad rail This upper also features a 16″ NBS 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 as opposed to aluminum, providing an upgraded extended latch charging handle and using quality internals like the NBS Black Nitride BCG paired with a NBS 16″ Carbine Barrel.
Lifetime Warranty
| Upper Receiver | Anderson or Aero Precision (depending on availability) – 7075-T6 aluminum – M4 Feedramps – .250 takedown pin holes |
| Barrel | 16″ 5.56 NATO 1:7 Twist Carbine Parkerized – Guaranteed to hold a 1.000″ MOA at 100 yards with appropriate ammo and shooting techniques. |
| Bolt & Carrier Group | NBSÂ Black Nitride M16 Bolt Carrier Group .223/5.56 – Full Auto Capable – 9310 MPI and HPT Tested bBolt – Case Hardened 8620 Carrier – 4130 Gas Key – Grade 8 Hardware With Proper Staking – Gas Key Sealed With Permatex No.3 – 8740 Hard Chrome Firing Pin |
| Charging Handle | Extended Latch |
| Gas System | Carbine – Nitrided Steel Gas Block – Stainless Steel Carbine Length Gas Tube |
| Handguard | 12″ Free Float Quad Rail – Black |
| Muzzle Device | Mil-Spec A2 Birdcage |
| Weight | 70 oz |
|---|---|
| Dimensions | 28 × 5 × 5 in |
| Barrel Finish | Mag Phosphate |
| Barrel Profile | Government / SOCOM |
| Cartridge Compatibility | 5.56 NATO |
| Barrel Length | 16" |
| Gas System Length | Carbine |
| Twist Rate | 1-7 |
| BCG / Charging Handle | Included |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
