The Real Avid Smart-Fit AR-15 Vise Block with AR-10 Sleeve is a universal gunsmithing tool designed to solve one of the most frustrating problems in the shop: receiver wobble. If you've wrestled with a lower receiver that shifts and rocks in your vise despite using a traditional block, you know how maddening it can be. The issue stems from the manufacturing tolerances in AR magwells, which vary far more than most shooters realize. This vise block tackles that head-on with an expanding design that conforms to fit all MIL-SPEC AR-15 magwells securely—no shimming, no slop, no workarounds.

What sets this block apart is its versatility. The base unit handles AR-15 platforms, and the included AR-10 sleeve slides over the main block to accommodate large-frame rifles, including AR-10s, DPMS LR-308, and SR-25 variants. That means one tool covers both your modern sporting rifle builds and long-range precision platforms. Whether you're installing a lower parts kit, fitting a stock, or doing detailed receiver work, the Smart-Fit design keeps your rifle stable and your frustration level down.

Real Avid built this for gunsmiths and serious home builders who care about precision and efficiency. It's the kind of tool that pays for itself the first time you avoid chasing a receiver around your vise or reaching for tape and shims. If you spend time at the bench building, repairing, or customizing ARs in any caliber, this block belongs in your kit.

The Real Avid Smart-Fit AR-15 Vise Block with AR-10 Sleeve is a universal gunsmithing tool designed to solve one of the most frustrating problems in the shop: receiver wobble. If you've wrestled with a lower receiver that shifts and rocks in your vise despite using a traditional block, you know how maddening it can be. The issue stems from the manufacturing tolerances in AR magwells, which vary far more than most shooters realize. This vise block tackles that head-on with an expanding design that conforms to fit all MIL-SPEC AR-15 magwells securely—no shimming, no slop, no workarounds.

What sets this block apart is its versatility. The base unit handles AR-15 platforms, and the included AR-10 sleeve slides over the main block to accommodate large-frame rifles, including AR-10s, DPMS LR-308, and SR-25 variants. That means one tool covers both your modern sporting rifle builds and long-range precision platforms. Whether you're installing a lower parts kit, fitting a stock, or doing detailed receiver work, the Smart-Fit design keeps your rifle stable and your frustration level down.

Real Avid built this for gunsmiths and serious home builders who care about precision and efficiency. It's the kind of tool that pays for itself the first time you avoid chasing a receiver around your vise or reaching for tape and shims. If you spend time at the bench building, repairing, or customizing ARs in any caliber, this block belongs in your kit.