The Glock 48 Compact has a compact Slimline frame, built-in beaver tail, match-grade GLOCK Marksman Barrel (GMB) and precision-milled front serrations. It features Glock's Safe Action system which provides a consistent trigger pull from the first to the last round. The three automatic independently operating mechanical safeties are built into the fire control system of the pistol. All three safeties disengage sequentially as the trigger is pulled and automatically reengage when the trigger is released. The frame is made of polymer with hardened steel guides.