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 AR!

Features

• Utilizes AR barrel extension lugs for secure grip
• Provides stable platform for maintenance tasks
• Precision-machined aluminum construction
• Softer than steel, prevents barrel extension damage
• Upper Receiver Lock Knob with 4-position locking system
• Ensures precise and secure upper receiver alignment
• Vise pins and pin retaining holes for adjustable positioning
• Ideal for high-torque applications and various maintenance needs
• Facilitates controlled, stable maintenance processes
• Suitable for routine cleaning, intricate repairs and upgrades
• Enhances safety and efficiency in firearm maintenance
• Compatible with all Mil-Spec AR upper receivers
• Robust construction for long-term durability
• Prevents unwanted rotation during maintenance
• Simplifies the process of applying necessary force
• Designed for professional and enthusiast use
• Streamlines the AR maintenance experience
• Minimizes the risk of damage to the firearm
• Adaptable to a broad range of maintenance activities
• Essential tool for precision-focused firearm care

AVAR15LLVB, AVAR10LLVB