SIG SAUER 9 MM RECOIL GUIDE ASSEMBLY

The SIG Sauer 1302621-R is a complete and corrosion-resistant recoil spring assembly designed for the P320 Full-Size 9 mm pistol. The assembly helps guide the slide's rearward movement, reduce impact load, and return the slide to its locked forward position after firing.

Suitable for use in

• Maintenance of the SIG Sauer P320 Full-Size 9 mm pistol

• Replacing a worn recoil spring assembly

• Regular preventive maintenance of the firearm

• As a spare part for an intensively used service or sport pistol

• For users who prefer a corrosion-resistant factory original assembly

• As a spare part for a gunsmith's workshop

• Restoring the reliability of a full-size P320

Why choose the SIG Sauer 1302621-R?

• Factory original SIG Sauer spare part

• Designed for the P320 Full-Size 9 mm configuration

• Complete recoil spring assembly

• Corrosion-resistant finish

• Product code 1302621-R

• Ready-to-install assembly

• Helps return the slide forward after firing

• Helps control slide movement and impact load

• Suitable for proper replacement of worn factory assembly

Technical specifications

• Manufacturer: SIG Sauer

• Manufacturer's designation: Assembly, Recoil, Full, 9mm – Corrosion Resistant

• Product type: recoil spring assembly

• English name: recoil spring assembly

• Firearm series: SIG Sauer P320

• Frame size: Full-Size

• Caliber: 9 mm

• Construction: complete spring and guide rod assembly

• Feature: corrosion-resistant

• Installation location: under the slide and barrel

• Function: guides slide movement and returns slide to initial position

• Installation: according to manufacturer's instructions or by a qualified gunsmith

• Firearm: not included

Included in the package

• 1 × SIG Sauer P320 Full-Size 9 mm corrosion-resistant recoil spring assembly 1302621-R

Barrel, slide, frame, and other pistol parts are not included.

Frequently Asked Questions

Which firearm is the SIG Sauer 1302621-R suitable for?

The manufacturer's designation defines this as a P320 Full-Size 9 mm recoil spring assembly. However, compatibility must be confirmed before purchase based on the exact firearm configuration, slide and barrel length, and the official spare parts diagram.

Is this assembly suitable for the P320 Compact or Carry model?

The Full-Size assembly should not be assumed to fit Compact, Carry, or Subcompact configurations. Slides and barrels of different lengths may require different recoil spring assemblies.

What does "corrosion resistant" mean?

This means the assembly is manufactured or finished for better corrosion resistance than standard. This does not make the part maintenance-free—after exposure to moisture, sweat, or dirt, the firearm must still be cleaned and dried.

When should the P320 recoil spring assembly be replaced?

Replacement may be indicated by the manufacturer's specified maintenance interval, visible spring damage, unusual slide movement, or reliability issues. If necessary, a qualified gunsmith should determine the exact cause.

When is the SIG Sauer 1302621-R the right choice?

This assembly is the right choice when you have a SIG Sauer P320 Full-Size 9 mm configuration and the manufacturer's documentation specifies code 1302621-R as the appropriate spare part. The corrosion-resistant finish is practical for firearms frequently exposed to moisture, sweat, or changing outdoor conditions.

If your firearm has a Compact, Carry, or other slide length, you must select the assembly intended specifically for that configuration. In case of reliability issues, be sure to rule out causes related to ammunition, magazines, extractor, fouling, and other parts before ordering a spare.

We recommend

Check the pistol model, caliber, slide length, and manufacturer’s spare part code before purchase. The modular construction of the P320 allows the use of different size slides, frames, and barrel sets, but this does not mean all recoil springs are interchangeable.

The recoil spring assembly directly affects slide movement speed and firearm reliability. During replacement, it is also advisable to check the condition of guide surfaces, slide, barrel locking surfaces, and the old assembly. Before disassembly, always unload the firearm completely and remove ammunition from the work area. After installation, perform a function check as per the manufacturer’s instructions and confirm firearm reliability safely at the shooting range. If unusual wear, obstruction, or persistent malfunctions occur, discontinue use and consult a qualified gunsmith.

Corrosion-resistant factory assembly for the P320 Full-Size pistol

The SIG Sauer 1302621-R is a complete recoil spring assembly for maintaining the P320 Full-Size 9 mm pistol and replacing a worn original part. A correctly selected and installed assembly helps maintain smooth slide movement and reliable firearm operation.

We recommend using the services of an experienced armourer to replace any spare parts.