UTG Pro TLU001 Receiver Extension Tube Mil-Spec AR-15 6 position Black Hardcoat Anodized Aluminum Rifle

The UTG Pro Mil-spec 6 position diameter receiver extension tube for AR15 rifles. The extension tube is CNC machined from 6061-T6 aircraft grade aluminum with precisely rolled threads for durable thread engagement with the lower receiver. Finished in a matte black Type III Class II hard coat anodized. Made in USA.