Real Avid AVAR10LLVB Lug-Lok Upper Vise Block - 7075-T6 Aluminum with Stainless Steel Pins for AR-10

Working on AR-10 builds or performing maintenance on your upper receiver? The Real Avid Lug-Lok Upper Vise Block is a precision-machined gunsmithing tool built to hold your AR-10 upper securely during assembly, disassembly, and accessory work. Unlike generic clamps that can mar your receiver, this tool engages directly with the barrel lugs inside the star chamber—the strongest structural point of the upper—to distribute stress safely and evenly. Made from 7075-T6 aircraft-grade aluminum with stainless steel pins, it won't damage your receiver during high-torque operations like barrel installation or rail work.

The design centers on smart engineering: the locking rod seats into those barrel lugs rather than relying on external pressure against the receiver body. A lock knob secures the rod firmly once you've got your upper positioned, while dual vise pins let you rotate and angle your work without the upper shifting. That versatility means you can hit upper receiver work from multiple angles without re-securing—faster, cleaner work whether you're a hobbyist builder or running an armorer bench.

Real Avid engineered this block to fit any Mil-Spec AR-10 upper receiver. If you're building, maintaining, or installing accessories on an AR-10 platform, this vise block cuts frustration and risk compared to trying to clamp a bare receiver or wrapping it in a rag and hoping for the best. It's professional-grade gunsmithing hardware at a price that makes sense for serious shooters who work on their own rifles.

Key Features

• Engages barrel lugs inside the star chamber for maximum holding power and safety
• 7075-T6 aircraft-grade aluminum construction—non-marring and durable
• Stainless steel pins resist corrosion and wear
• Lock knob for secure rod positioning
• Dual vise pins allow multiple working angles and prevent rotation
• Designed for all Mil-Spec AR-10 upper receivers
• Distributes torque through steel barrel lugs, not the upper housing

Specifications

Frequently Asked Questions

Will this work with any AR-10 upper receiver?

Yes—the Lug-Lok is precision-machined to fit all Mil-Spec AR-10 upper receivers. It engages directly with the barrel lugs inside the star chamber, so compatibility is universal across standard AR-10 platforms.

Can I use this vise block in a regular shop vise?

The dual vise pins are designed to clamp into a standard vise. The block then holds your AR-10 upper securely at adjustable angles for work.

What kinds of AR-10 work can I do with this block?

The Lug-Lok is built for barrel installation, upper receiver maintenance, accessory mounting, and other assembly or armorer tasks where you need a stable, non-marring hold during high-torque operations.

Will this damage my receiver?

No. The 7075-T6 aluminum is non-marring, and the tool distributes torque through the steel barrel lugs rather than clamping on the receiver housing itself—keeping your upper in pristine condition.