This AR chassis is completely coated inside and out with NiB-X (Nickel Boron) and topped with ceramic color finish.
- Carbine-length gas system
- NiB-X coated M4 flat-top upper and lower receivers
- NiB-X coated bolt carrier group and charging handle
- Case hardened, shot peened and magnetic particle inspected Carpenter 158 bolt with Mil-Spec gas rings
- NiB-X coated fire control parts
- NiB-X coated 16" 4150 Chrome Molybdenum Vanadium barrel with Nitromet coated bore
- 1:7 inch twist
- Gas block is shipped loose for attachment of any hand rail
- Just add furniture, hand rail and flash hider to complete your custom rifle.
- Made in the USA