Glock 17 Gen 4/5 Recoil Spring Assembly Features The Glock Recoil Spring Assembly uses a dual spring design the same configuration introduced with the Gen 4 Glock 17 and carried forward into Gen 5 to help manage recoil impulse more effectively than earlier single spring systems. The dual spring arrangement distributes recoil energy more evenly across the recoil rod assembly which can reduce felt recoil and lessen wear on the frame rails over time. Designed specifically for 9mm Luger chambered Glock 17 pistols this assembly is a precise factory correct fit with no modification needed during installation. It functions as a critical part of the pistol s operating system directly affecting slide cycling and overall shooting comfort. As recoil springs wear with use they can lose tension and affect slide velocity and lockup timing making periodic replacement an important part of pistol maintenance. This genuine Glock recoil spring assembly restores the pistol to factory-correct recoil management helping maintain reliable cycling across thousands of rounds. Because it is manufactured by Glock to the same standard as the original factory part shooters can be confident the fit tension and durability will match what came installed on their pistol. Keeping a spare recoil spring assembly on hand is a smart practice for any Glock 17 Gen 4 or Gen 5 owner who shoots regularly. Glock 17 Gen 4/5 Recoil Spring Assembly Specifications Manufacturer: Glock Model: Recoil Spring Assembly Caliber: 9mm Luger Compatible Hosts: Glock 17 Gen 4/5 Condition: New Available At: GrabAGun