CZ 2075 RAMI B-DB 3'' Barrel 9mm/40s&w 10mm The external springs are different

The external springs are different in length

The longer spring (more coils) is stronger and has a heavier pound rating than the shorter spring (slide on the battery)

56 X 45-MM

The Dark Grey spring plug is offering a heavier buffer effect and the silver spring plug offers a lighter buffer effect (slide full open position)

CZ 2075 RAMI B-DB 3'' Barrel 9mm/40s&w 10mm The external springs are differentDPM Mechanical Recoil Reduction System for CZ 2075 Rami B BD This system works due to the multi spring intricate rod (3 springs) and controls the functionality of the gun. The third spring, which is contained within the rod, controls the movement of the slide so it never rams on the frame. 3 separate external springs are included with the system. The springs are different in length with the longest being heaviest when the slide is on the battery, so