Glock PG3150203 G31 Gen4 357 Sig 4.48" 15+1 Black Steel Slide Black Interchangeable Backstrap Grip Fixed Sights

The Glock 31 Gen4, in .357, introduces revolutionary design changes to the pistol that has been the optimum solution for those seeking high muzzle velocity and superior precision in a reliable, yet lightweight, pistol with large magazine capacity. The modular backstrap design lets the user adapt the grip to hand size, and the frame surface exhibits the scientifically-designed Gen4 rough textured technology. This model features a dual-recoil spring assembly that substantially increases the life of the system, and the enlarged reversible magazine catch easily accommodates left- or right-handed operators. The Generation 4 frame retains the Glock accessory rail for accessory attachment.