The GTUL Tool allows the user to easily dissemble a magazine for routine cleaning and maintenance. Release the locking tabs, preserve your floorplates and magazines with a product designed specifically to make this task easier. GTUL recommends you use their Mag Brush and punch and not use small screwdrivers, icepicks nails or allen wrenches. This current version is marked "G42" but works with both the Glock 42 and 43. When placing or removing GTUL from your magazine, it is best to keep it flush with the leading edge of the magazine. FeaturesQuick and easy floorplate removalPrevents wear on locking tabsPrevents loose fitting floorplatesNoteDoes not fit Glock 43X or 48 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.