Centennial Defense Systems MOD4 Stainless Steel Guide Rod Assembly for Gen 1-3 Glock 17, Black, Button Head Allen Screw, 20lb Spring, 10390

This eliminates guide rod flex and ensures it will not chip crack or break like plastic guide rods providing a lifetime of reliable service. Flat wound recoil springs are manufactured of certified aerospace spec materials heat treated shot peened and stress relieved to maximize durability.