Description

NEW DPM Mechanical Recoil Reduction System | Staccato HD P4 & P4.5"

Overview: The DPM Mechanical Recoil Reduction System for Staccato HD P4 & P4.5" barrel is a direct, high-performance replacement for the factory recoil rod. Engineered for OEM and heavily modified platforms, this kit provides multiple spring options to tune slide travel, reduce felt recoil, and protect the slide and frame while maintaining factory function.

Key Features

Direct replacement: Replaces factory guide/recoil rod with no permanent modifications required when properly installed.
Wide adjustability: Includes eight external springs across four wire diameters to fine-tune slide force for different ammo and setups.
Spring retainer & mechanism: Kit includes a spring retainer for secure installation and consistent performance.
Mandatory OEM spring plug: The OEM spring plug must always be installed with the DPM system for proper function.
Lifetime warranty: DPM backs this product with a lifetime warranty.
Proven pedigree: Millions of DPM patented products serve military, law enforcement and civilian firearms globally.
Origin: Made in Greece | EU.

Included

1 × DPM recoil mechanism (rod)
8 × external springs (varied lengths / wire diameters)
1 × spring retainer
Installation instructions (must-watch video recommended)
Warranty information

Spring Sets & Pound Ratings

Each spring set is listed by wire diameter and color code; values shown are measured at slide in battery (closed) and slide full open position.

0.95 mm (Gray)

Slide in battery — Short: 5.0 lbs
Slide in battery — Long: 6.0 lbs
Slide full open — Short: 10.0 lbs
Slide full open — Long: 11.0 lbs

1.00 mm (Black)

Slide in battery — Short: 5.7 lbs
Slide in battery — Long: 6.4 lbs
Slide full open — Short: 11.0 lbs
Slide full open — Long: 12.1 lbs

1.05 mm (Gold)

Slide in battery — Short: 6.6 lbs
Slide in battery — Long: 7.4 lbs
Slide full open — Short: 13.2 lbs
Slide full open — Long: 14.3 lbs

1.10 mm (Silver)

Slide in battery — Short: 7.3 lbs
Slide in battery — Long: 8.15 lbs
Slide full open — Short: 15.4 lbs
Slide full open — Long: 16.5 lbs

Performance Benefits

Faster follow-up shots: Reduced muzzle rise and smoother slide return for quicker target reacquisition.
Slide & frame protection: Increased buffering at full-slide-open reduces violent impact to the frame.
Reduced malfunctions: Properly tuned spring combinations can help prevent certain jams and double-feeds.
Customizable feel: Mix & match springs to match ammunition power, compensator setups, or shooter preference.

Compatibility & Installation Notes

Designed to serve OEM and heavily modified Staccato HD P4 & P4.5" platforms. Verify fit if using aftermarket slides or non-standard modifications.
OEM spring plug is mandatory - always install the OEM spring plug with this DPM system.
Installation video / instructions are provided - watch before installing.
DPM may update spring sets or components as their technology evolves; supplied kit contents may vary slightly over time.
Contact info@TerranGearUSA.com for custom questions about compensators, threaded barrels, slide conversions, or special setups.

Technical Summary

SKU: 1000376
EAN: 5213007223760
MPN: MS-STACC-HDP4
Included: Mechanism, 8 springs, spring retainer, instructions
Material / Finish: Standard DPM components (verify kit for finish)
Made in: Greece | EU
Warranty: Lifetime

Disclaimer: Always follow firearm safety rules. After installation, perform a full function check and use safe, controlled testing before live use. DPM’s patented systems are widely used in military, law enforcement, and civilian firearms worldwide.

Videos