DPM Mechanical Recoil Reduction System for FN Herstal FNP-FNS-FNX 4" Barrel
The system includes 2 external separate springs. The springs are different in length with the longest being heaviest when the slide is on the battery, so the shooter can fine-tune the weapon for his/hers personal standards.
**As we lead the evolution of recoil reduction technology, products may change versions (new design with different springs, with or without plugs, washers, etc.) without any prior notice.**
