Features: - Designed for use with Tipton® Best Gun Vise™ mounts to center rail with included fasteners - Center section rotates 180° (in 15° increments) and locks into place at desired location - Mag well arm is removable for clamping in a bench vise when additional rigidity is required - Solvent-resistant polymer provides durability and is non-marring to surfaces - Also designed to mount to your bench top with the included fasteners - Supports 1911 for cleaning & light gunsmithing operations - Locks into place using magazine lock on your receiver - Built-in barrel bushing wrench - The Tipton 1911 Mag Well Vise Block is quite possibly the handiest tool a 1911 owner could ask for. Designed for use with the Tipton® Best Gun Vise™ 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