Upgrade your Beretta PX4 Series with the Special Duty Spring Kit, featuring nickel-plated springs for superior corrosion resistance and minimal friction. This comprehensive kit includes essential components: Sear Spring, Trigger Spring, Disassembly Spring, Hold Open Lever Spring, Back Strap Spring, Transfer Bar Spring, Hammer Spring, Magazine Release Lever Spring, and Hammer Pin Spring. Engineered for durability and performance, this spring kit ensures reliable functionality and enhanced operation of your firearm.