DPM Adjustable Mechanical Recoil Reduction System for FN 545 & FN 510 MRD 4.1" & TACTICAL 4.71" Barrels

This high-end tech system works due to the multi-spring intricate rod (2 springs) in combination with the 4 external springs that work as buffer, and controls the functionality of the pistol.

The kit includes 1 Recoil Mechanism and 4 external springs, 2 x 1.1 mm wire diameter and 2 x 1.15mm wire diameter, all with different power rates.

The open coil should be placed towards the guide rod.

Power Rates

Standard Springs 1.1mm

Slide on the battery:

• Short: 10.8 lbs
• Long: 11.5 lbs

Slide full open position:

• Short: 18.5 lbs (approx.)
• Long: 19.5 lbs (approx.)

Heavy Springs 1.15 mm

Slide on the battery:

• Short: 11.8 lbs
• Long: 12.5 lbs

Slide full open position:

• Short: 21 lbs (approx.)
• Long: 23 lbs(approx.)

Overall Advantages

• Faster follow up shots
• Improved firing speed
• Slide and Frame Protection
• Elimination of jams
• Significant recoil reduction
• Better double-tap concentration
• Better control and greater accuracy