FN 545 & FN 510 MRD 4.1" & TACTICAL 4.71"

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 (Recommended for 545)

Slide on the battery:  

• Short: 10.8 lb
• Long: 11.5 lb  

 Slide full open position:

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

Heavy Springs 1.15 mm (Recommended for 510)

Slide on the battery:  

• Short: 11.8 lb
• Long: 12.5 lb  

Slide full open position:

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

Lifetime Warranty. 

For changes to features, like comp set-up, threaded barrels, slide conversions etc., contact us via email at [email protected] before placing your order. In some cases, we need to determine whether a custom product is required.

Millions of our patented products are in service to military, law enforcement, sports and civilian firearms around the world.  

How it works

Made in Greece – EU.