Real Avid Lug-Lok Upper Vise Block Security Professional the Under Armour UA Instinct

the Under Armour UA Instinct Sunglasses offer polarized lenses that reduce glare and enhance contrast

reducing the risk of accidental closure

The integrated pushbutton and remote switch assembly operates independently

Tan (V4112B): XS to 4XL Regular

15-9650105000

Real Avid Lug-Lok Upper Vise Block Security Professional the Under Armour UA InstinctReal Avid Lug Lok 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. Thats 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,