The Tipton 1911 Mag Well Vise Block is quite possibly the handiest tool a 1911 owner could ask for. Designed for use with the TiptonA(R) Best Gun ViseTM, this center support slides into the magazine well and provides a steady base for cleaning or light gunsmithing on your 1911. Users without a Best Gun Vise can mount the Mag Well Vise Block directly to their bench top with the included fasteners. Loaded with handy features, this tool is a must have for anyone with a 1911 a Supports 1911 for cleaning & light gunsmithing operations a Built-in barrel bushing wrench a Designed for use with TiptonA(R) Best Gun ViseTM, mounts to center rail with included fasteners a Also designed to mount to your bench top, with the included fasteners a Center section rotates 180Adeg (in 15Adeg increments) and locks into place at desired location a Locks into place using magazine lock on your receiver a Solvent-resistant polymer provides durability and is non-marring to surfaces a Mag well arm is removable for clamping in a bench vise when additional rigidity is required