Glock 20/21 Gen 3 Recoil Spring Assembly Features The Glock Recoil Spring Assembly for Glock 20/21 Gen 3 is manufactured to the same high standards in material and workmanship as the component that originally shipped in the pistol. Recoil springs wear with use and a weakened spring can affect slide velocity extraction and overall reliability so a factory replacement restores the pistol s intended cycling characteristics. Because it is a genuine Glock part fitment and function match the original exactly without the guesswork that can come with aftermarket alternatives. This makes it a dependable choice whether the goal is routine maintenance or correcting a known issue with feeding or ejection. Finished in black to match factory internals the assembly is simple to install as part of regular pistol upkeep or when rebuilding a well-used Glock 20/21 Gen 3. Keeping a factory spare on hand also lets owners address spring fatigue before it becomes a reliability problem in the field or on duty. The part ships as a complete assembly ready to install without additional components. This Glock Recoil Spring Assembly is a practical low-cost way to keep a Glock 20/21 Gen 3 running at factory-original performance available for sale at GrabAGun. Glock 20/21 Gen 3 Recoil Spring Assembly Specifications Manufacturer: Glock Compatible Hosts: Glock 20/21 Gen 3 Part Type: Recoil Spring Assembly Color: Black Quantity: 1 Condition: New Available At: GrabAGun