Wolff Gunsprings is a manufacturer of precision springs for firearms. They offer recoil springs, hammer springs (mainsprings), magazine springs, firing pin springs, striker springs, trigger springs as well as many other firearm springs. Their proprietary spring material and processes provide you with high quality, reliability and proven performance not found with most other springs. With nearly 60 years of experience exclusively with firearm springs, you can be assured that when you choose a Wolff spring, you are choosing the best!