Prophet River Firearms

LUG-LOK® UPPER VISE BLOCK

ADVANCED THINKING, AR15 OR AR10 UPPER VISE BLOCK

Traditional clamp style upper blocks fit poorly and can exert enough inward pressure to damage the receiver when applying torque to a barrel nut or flash suppressor. That’s bad design. So, we designed an upper block that leverages the strongest part of the gun – the barrel lugs inside the star chamber. The Lug-Lok is precision machined and precisely fits into all Mil-Spec uppers. It mates perfectly with the barrel lugs, while allowing you to rotate the upper to be able to work on different sides. There are 2 vise pins that allow you to hold the upper at multiple working angles and prevent unwanted rotation during high torque application. The lock knob keeps Lug-Lok seated into the barrel lugs. The result – the safest, easiest and smartest way to lock down an AR10 upper into a bench vise.

DESCRIPTION
THE SAFEST AND SMARTEST WAY TO LOCK DOWN AN AR10 UPPER INTO A BENCH VISE:
Uses strength of barrel lugs to secure upper
Precision machined to universally fit into all MIL-SPEC barrel lugs
Superior experience to old-fashioned clamp-style outer receiver blocks
Eliminates crushing and marring of outer receiver
Secure the upper at multiple optimum working angles
Critical functionality: torquing barrel nuts, changing flash suppressors, installing handguards, adding accessories to a picatinny rail, building or customizing