Real Avid's Lug-Lok® Upper Vise Block (AR15) is the safest and smartest way to lock down an AR-15 upper in a bench vise. Built for builders and gunsmiths, it uses the barrel lugs inside the star chamber for a secure grip during torque-heavy tasks like barrel-nut tightening and flash suppressor installation. It’s precision machined to fit all MIL-SPEC uppers and allows you to rotate the upper for working on different sides.

Key Features & Design

• Uses the strength of barrel lugs to secure upper
• Precision machined to universally fit into all MIL-SPEC barrel lugs
• Star Chamber Locking Lugs
• Alignment Flange
• Upper Receiver Lock Knob
• 7075-T6 Aircraft Grade Aluminum
• Vise Pin Retaining Holes
• Lock Knob Retaining Holes
• 2 Stainless Steel Vise Pins
• Mates perfectly with the barrel lugs, while allowing rotation to work on different sides
• 2 Vise Pins allow multiple working angles and prevent unwanted rotation during high torque application
• Eliminates crushing and marring of outer receiver
• Superior experience to old-fashioned clamp-style outer receiver blocks
• Critical functionality: torquing barrel nuts, changing flash suppressors, installing handguards, adding accessories to a picatinny rail, building or customizing

The Lug-Lok design keeps the upper securely seated with a lock knob, granting you precise control and peace of mind during demanding tasks. If you’re assembling or maintaining AR-15 uppers, this block is a smart, reliable upgrade to any workbench setup.