Sphinx SDP Standard & Production .45auto Medium = 9 kg/ 20

Medium = 9 kg/ 20 lbs

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

Faster follow up shots

*Slide Extended System: A plug (bushing) is used in order to create more space in the slide of subcompact pistols so these models can fit in the DPM Mechanical recoil reduction system

You do not need an airsoft specific lube to do the same function

Sphinx SDP Standard & Production .45auto Medium = 9 kg/ 20DPM Mechanical Recoil Reduction System for SDP Standard & Production This DPM Mechanical 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. Included with the system are 4 separate springs so the user can fine tune the weapon for his her personal standards. The longer spring (more