The Beretta Special Duty Spring Kit for PX4 Series (Beretta part number E00859) refreshes nine of the internal springs that keep a PX4 cycling smoothly and firing reliably. Every spring in the kit is nickel plated for the highest corrosion resistance and very low friction, helping the action run smoother than a set of factory springs that have taken a set after years of use. The kit covers the 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, giving PX4 owners a complete refresh in one order.

Key Specifications

• Kit includes nine springs: sear, trigger, disassembly, hold-open lever, back strap, transfer bar, hammer, magazine release lever, and hammer pin springs.
• Finished with nickel plating for high corrosion resistance.
• Nickel plating also delivers very low friction for a smoother-feeling action.
• Built specifically for the Beretta PX4 series.
• Constructed from steel for long-term durability.

Frequently Asked Questions

Which pistols does this kit fit? The Beretta PX4 series.

What springs are included? Sear, trigger, disassembly, hold-open lever, back strap, transfer bar, hammer, magazine release lever, and hammer pin springs, nine in total.

Why nickel-plated springs? Nickel plating gives the springs high corrosion resistance and lower friction than an untreated factory spring.

Buy the Beretta Special Duty Spring Kit for PX4 Series

Order it from our Lubbock, Texas gun shop for a complete internal spring refresh on your PX4. Shop more Beretta parts in our small handgun parts category.