Real Avid Lug-Lok, Upper Vise Block, Designed for Standard AR10 Style Uppers 

Lug-Lok® Upper Vise Block from Real Avid is an ingenious gunsmith's tool, allowing to immobilize the entire upper assembly together with the barrel of the AR10 rifle in a vise.

Made with the highest precision, this aircraft-grade aluminium construction locks into the bolt chamber, matching it perfectly, which allows for the safe application of high force, e.g. when tightening the barrel nut or compensator, without the risk of damaging weapon elements.

The block is also equipped with two stainless steel pins, which, combined with the holes in the vice-clamped part, allow you to set the angle at which the weapon is held and the locking knob for the upper, which prevents it from rotating on the block.

Features:

• Allows safe locking of the AR10 upper in the vise
• Made of 7075-T6 aluminum
• Steel pins to adjust the angle of the gun support
• Locking knob to prevent the upper from rotating

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.