Advanced Thinking, AR15 Upper 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, Real Avid 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 AR15 upper into a bench vise.

The Safest and Smartest Way to Lock Down An AR15 Upper Into a Bench Vise.

Uses the 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

FEATURES:

• Vise Pin Retaining Holes
• Lock Knob Retaining Holes
• 7075-T6 Aircraft Grade Aluminum
• Star Chamber Locking Lugs
• Alignment Flange
• Upper Receiver Lock Knob
• 2 Stainless Steel Vise Pins