This system works due to the multi spring intricate rod and controls the functionality of the pistol. The system includes one washer and two different external springs. The washer should Always be Installed when the DPM Recoil Rod and springs are used.
The external springs are different in length, the long spring is heavy and the short is light so the shooter can fine tune the pistol on the opening and locking positions (slide on the battery) according his/her personal standards.
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