ERGO’s MAST is one of the most useful maintenance accessories available. Simply bolt, clamp, or slide into the base to securely attach it to a bench and slide your firearm onto the block. Perfect for displaying, cleaning, maintenance, or storage. Features MAST Mounting MAST design allows each module to be mounted in a vise, screwed to a work bench, or secured in the base. Built Strong. Built to Last Made from reinforced polymer that is super tough and impact/temperature/chemical resistant. Stainless Steel Base Pins The MAST base comes with two stainless steel pins for securing each module. MAST Base Mounting MAST modules lock securely into the firearm’s existing ambi-magazine release. Includes 1911 Modular Armorers Stand MAST Base 2 Stainless Steel Base Pins Specifications Fits Colt 1911 Module and Colt 1911 clones. Color Black SOLD QUANTITY 1