Real Avid Lug-Lok AR-15 Upper Vise Block

Get smart about the way you work on your firearm with the Lug-Lok Upper Vise Block. The Lug-Lok Vise Block utilizes the strength of barrel lugs to safely secure your upper receiver while you work, rendering clamp-style blocks obsolete. The non-marring, aircraft-grade aluminum block slides through the upper receiver and into the star chamber of your barrel. This takes the pressure from torquing away from weak, damage-prone parts and puts it squarely on the steel lugs. Adjustable vise pins hold th