This Buffer Tube from WMD Guns (part no. 1-NIBXBT) is a 7075 aluminum mil-spec receiver extension finished in WMD’s silver NiB-X nickel boron coating, accepting an M4-style adjustable carbine buttstock across six positions.

Key Specifications

• Machined from 7075 aluminum extrusion.
• Mil-spec diameter receiver extension.
• Accepts an M4-style adjustable carbine buttstock.
• Six positions of adjustment.
• Coated in silver NiB-X nickel boron finish.

Frequently Asked Questions

Will this fit a commercial-spec stock? No, this is a mil-spec diameter buffer tube; a commercial-diameter stock would need a commercial-spec tube instead.

What does the NiB-X coating add? NiB-X nickel boron coating is designed for durability and a distinct silver finish compared to a standard anodized tube.

Buy the WMD Guns NiB-X Carbine Buffer Tube, Silver

Finish your stock setup with this silver NiB-X WMD Guns mil-spec buffer tube. It ships fast from our Lubbock, Texas gun shop, and our AR-15 buffer systems selection has more AR-15 buffer system parts.