Cleaning, repairing, or assembling your 9mm Glock - without scratching the frame. The Presma 9mm Glock Mag Well Vise Block drops into the magazine well and clamps in a standard bench vise, freeing both hands for detail work on the slide, frame, or internals. Features: Inserts into the magwell for secure, scratch-free mounting Clamps in a standard bench vise - hands-free maintenance position Polymer construction protects frame finish Compact, lightweight, lives in the range bag Fitment: 9mm Glock double-stack frames: Glock 17, 19, 26, 34, 45, 47 Not for single-stack 9mm (Glock 43, 43X, 48) - narrower magwell Not for .40 / 10mm / .45 magwell widths Use: For maintenance, cleaning, and parts swaps only. Always verify the pistol is unloaded - chamber and magazine well empty - before mounting in a vise. GLOCK is a registered trademark of GLOCK Inc. 3CR Tactical is not affiliated with, endorsed by, or sponsored by GLOCK Inc. Any reference to GLOCK products is for identification and compatibility purposes only.