The Midwest Industries Glock Magazine Pistol Caliber Carbine Receiver Maintenance Block securely locks the firearm in a vise by the magwell, holding it steady for cleaning or maintenance. The maintenance block is compatible with many PCCs and handguns, such as the Kriss Vector, Ruger PC Carbine and Glock 19/21. It is designed to fit Glock 9mm/.40cal and 10mm/.45cal style firearms. The high-strength polymer block features multiple points of contact for vice use as well as mounting holes for attachment to bench or alternative work surfaces. Notes:Weight: 6.7ozHeight: 7.75"Length: 7.75"Width: 1.5" DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.