DPM Recoil Reduction Spring Kit - Sig SP2022 & SP2340

DPM Mechanical Recoil Reduction System | SIG SP2022 & SP2340

Overview: Upgrade your SIG SP2022 or SP2340 with the DPM Mechanical Recoil Reduction System — a direct drop-in replacement for the factory recoil rod that cushions slide travel, reduces felt recoil, and protects the slide and frame. This multi-spring design improves follow-up speed, reliability, and shooter control without changing pistol configuration.

Compatibility

• Fits: SIG SP2022 and SIG SP2340 (drop-in replacement).
• Fitment note: No permanent modifications required. Verify model before ordering.

Included & Optional Components

• DPM recoil rod assembly (drop-in)
• Optional spring sets for caliber tuning:
  • 1.0mm (dull silver) — longer/softer springs recommended for 9mm.
  • 1.05mm (shiny silver) — shorter/stronger springs recommended for .40 S&W.
• Installation instructions and lifetime warranty documentation

Power Rates & Tuning (Slide in the Battery)

External Springs 1.0mm (dull silver) — recommended for 9mm

• Short: 6.2 lbs
• Long: 7.3 lbs

External Springs 1.05mm (shiny silver) — recommended for .40 S&W

• Short: 7.5 lbs
• Long: 8.5 lbs

Total Buffer Force (Slide Full Open Position): Approximately 17 lbs (depends on spring/spacer selection).

Key Benefits

• Faster follow-up shots — improved sight recovery and target reacquisition.
• Slide & frame protection — reduces violent impact at slide lock and extends component life.
• Fine-tunable performance — choose spring wire/length to match ammunition and modifications.
• Reliable operation across a wide range of ammo types when correctly installed and tested.
• Lifetime warranty for manufacturing defects.

Installation & Safety Notes

• Always ensure firearm is unloaded and follow all firearm safety rules before installation.
• Test function and perform a safe-fire check after installation to confirm reliable operation with your chosen springs and ammo.
• If you use compensators, threaded barrels, or other slide modifications, contact the manufacturer or Terran Gear USA support for best-practice setup recommendations.

Technical Summary

• Product Type: Mechanical recoil reduction rod (drop-in replacement)
• Compatible Models: SIG SP2022, SIG SP2340
• Spring Options: 1.0mm (dull silver) for 9mm; 1.05mm (shiny silver) for .40 S&W
• Slide Closed Force: ~6.2–8.5 lbs (model & spring dependent)
• Slide Full-Open Buffer: ~17 lbs (approx.)
• Warranty: Lifetime

Note: DPM products may be updated or revised without prior notice. Verify current kit contents and instructions prior to installation.