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NiB-X “Big Beast” .308 Billet Chassis®

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308 NiB-X Billet Chassis

Availability: In Stock

SKU: NiBX308CH Return Policy



308 NiB-X Billet Chassis

  • LOWER RECEIVER: Billet 7075-T6 Aluminum Machined to Mil Spec Dimensions, Front Magazine Well Finger Grips, NiB-X Nickel Boron Coated for Durability
  • UPPER RECEIVER: Billet 7075-T6 Aluminum Machined with Feed Ramps. NiB-X Coated for Lubricity and Durability
  • BARREL: Match Grade Chrome Moly Vanadium Steel, 1:10 Twist, 18″ Government or M4 Profile, Carbine Gas System, Nitromet QPQ Salt Bath Nitrided For Extended Life and Accuracy, NiB-X Coated on The Outside for Durability and Heat Dissipation
  • BARREL EXTENSION: NiB-X Coated Barrel Extension for Extremely Smooth Locking and Unlocking with The Bolt
  • GAS SYSTEM: Low Profile Gas Block, CNC Machined From 4140 Steel and NiB-X Finished, Nitromet QPQ Carbine Length Gas Tube, Direct Impingement
  • BOLT CARRIER GROUP: Mil-Spec MP Tested, NiB-X Coated for Reliability and Ease of Cleaning, Properly Staked Gas Key
  • FIRE CONTROL GROUP:  Hammer, Trigger and Disconnect coated in NiB-X for lower pull force (<6 lbs) and smooth reset.
  • BUFFER: Carbine Buffer
  • SIGHTS: Optics Ready
  • RECEIVER EXTENSION: 6 Position Mil-Spec 7075-T6 Aluminum, NiB-X Coated Inside and Out
  • Made In The USA!

Additional Information

  • Caliber:                  .308 Winchester/ 7.62 x 51mm
  • Gas System:         Carbine
  • Product Weight:    7 Lbs
  • Length:                  37”


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Please note that this product can only be shipped to an authorized FFL dealer. You may purchase this product from WMD Guns online store, but to receive your product, you will need to do the following:

  • Send your order receipt to an authorized FFL dealer in your state.
  • Ask them to forward your order number plus their FFL license to WMD Guns at customerservice@wmdguns.com or fax to (772) 618-1795.