Safariland Model 773 Competition Open Top Magazine Pouch, For 1.5 Duty Belts, Fits Glock 17, Right Hand, STX Tactical Black Finish 773-83-121-150 The Model 773 Open Top Magazine Pouch is an innovative competition pouch design. It utilizes the same adjustable belt loop and rollers as the 771 but has a closed-in front area of the pouch so that it helps retain the magazine. The 773 is adjustable to any angle within a 90 degree range and the belt loop size is 1.5".