This is the ORIGINAL Trapezoid Grip™ slide lock for Glock™ pistols. Unfortunately there are "knock offs", copies and counterfeit versions on the market. Ensure yours is genuine Brass Stacker™ Brand!
These slide locks feature a unique shape that allows for maximum finger purchase making field strip take down a breeze. They have a low profile design which is approximately flush with the pistol frame reducing holster wear and the general discomfort found with other extended slide locks. They are made from aircraft grade 4130 chrome-moly alloy steel with a milled barrel lug notch for superior "in battery" lock up.