DPM Systems FN HERSTAL FNX 4.5″ & TACTICAL 5.3″ BARREL .45ACP

About the FN Herstal FNX-45 Recoil Reduction Spring Rod by DPM Systems:

Will Fit: FN Herstal FNX-45   –  .45ACP

FN Herstal FNX-45 Recoil Spring Assembly Instructions

The DPM FN Herstal FNX-45 Recoil Reduction Spring Rod by DPM Systems replaces the original factory guide rod/spring system and produces an advanced recoil reduction by absorbing the shock gradually and slowing the slide down before its impact with the frame of the pistol. Because the system is an interior modification of your pistol it will not change the external dimensions of the handgun, therefore there is no for a new holster, sights or any other accessory you own.

The DPM FN Herstal FNX-45 recoil spring system works due to its multi spring rod design (three springs) by producing an advanced recoil reduction technique by gradually slowing the slide down before impacting the frame of the pistol using Spring No. 1 (see fig. below) and Spring No. 2. The third spring (Spring No. 3) which is contained within the rod itself controls the movement of the slide so it never rams on the frame.

Power Rates

Slide on the battery

• • Short Spring: 9lbs
  • Medium Spring: 10lbs
  • Long Spring: 11lbs

 Slide full open position

Total power: 24lbs (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

This recoil springs are a direct replacement for the stock recoil rod and does not change the configuration of the pistol.

The external springs are different in length with the longer offering heavier slide travel and locking than the shorter spring.

The washer is necessary to be installed always.

*Dimensions of the spring are the same as the original.