The Birchwood Casey magnetic armorers block holds pistol components during maintenance and disassembly. Easily remove pins on most pistols, rifles, and shotguns. The integrated magnet holds pins and small parts, non-marring polymer material wont harm the pistols finish. It is solvent safe wont fade, wear, or crack when exposed to common gun cleaning chemicals. Includes a 1911-barrel bushing tool and main spring removal tool. It is compatible with Glock 2, 3, or 4 pin trigger assemblies.