SIG SAUER P320 Compact XCarry Recoil Spring Assembly

SIG SAUER P320 Compact/XCarry Recoil Spring Assembly

This factory SIG SAUER recoil spring assembly is a direct replacement component for compatible P320 Compact and XCarry pistols chambered in .40 S&W or .357 SIG. Identified by manufacturer part number KIT-320C-43-RECOIL-SPRING and UPC 798681594689, it is intended for configurations using a 3.9-inch non-threaded barrel or a 4.6-inch threaded barrel.

The recoil spring assembly is a central part of the pistol’s operating cycle. As the slide moves rearward after firing, the assembly compresses and stores energy; it then helps move the slide forward, strip the next cartridge from the magazine, and return the pistol to battery. Replacing a worn, damaged, or questionable assembly with the correct factory part helps preserve the timing and function designed for the firearm.

Compatibility

• P320 Compact and XCarry configurations specified by SIG SAUER
• .40 S&W and .357 SIG chamberings
• 3.9-inch non-threaded barrels
• 4.6-inch threaded barrels

Important: SIG SAUER states that this assembly is not compatible with 9mm. It should also not be selected solely by the general P320 model name, because recoil assemblies vary by caliber, slide length, and barrel configuration. Confirm the pistol’s exact chambering and configuration before ordering.

Factory Specifications

• Manufacturer: SIG SAUER
• Manufacturer part number: KIT-320C-43-RECOIL-SPRING
• UPC: 798681594689
• Type: Factory recoil spring assembly
• Compatible calibers: .40 S&W and .357 SIG
• Assembly length: 2.90 inches / 73.9 mm
• 9mm compatibility: No

When to Inspect or Replace

A recoil spring assembly is a wear component. Inspection may be appropriate during routine maintenance, after an unusually high round count, or whenever the assembly shows visible damage, binding, distortion, or inconsistent operation. Cycling issues can have several causes, so replacing parts without diagnosing the firearm may not resolve a malfunction. Follow the maintenance interval and inspection guidance in the applicable SIG SAUER owner’s manual.

Installation and Safety

Before handling or disassembling any firearm, remove the magazine, open and lock the action, and physically and visually verify that the chamber is empty. Install only in a verified compatible pistol and follow the manufacturer’s disassembly and reassembly instructions. After installation, perform the prescribed unloaded function checks before returning the firearm to service. If fitment is uncertain or the pistol does not function normally, stop and consult SIG SAUER or a qualified armorer.