Purpose: A 1911 vise block is a gunsmithing tool used to securely hold either the slide or the frame of a 1911 pistol in a bench vise without causing damage. The most common type is the slide vise block, which fits into the slide rails and is mainly used for installing or removing sights and performing other slide work. The magwell vise block inserts into the frame’s magazine well to hold the entire pistol steady for cleaning, disassembly, or general maintenance.
1911 Vise Block 45 ACP Magwell
Overall, it provides a safe and stable way to work on the gun while protecting its finish.