Description
This M4-style receiver extension tube has six precision-machined notches on the underside for maximum flexibility in setting length-of-pull with adjustable buttstocks, and accommodates Mil-Spec sized stocks.
Features:
- Impact Extruded
- Mil-Spec diameter buffer tube
- Rolled threads
- Drain hole
- Material: 7075-T6 Aluminum
- Dry Film Lubed Inside Per Mil-Spec
- Finish: Type III Hardcoat Anodized
- Six adjustment positions
