GLOCK 40 GEN 4 10mm 40s&w TRUE BLUE Gun Oil creates

TRUE BLUE Gun Oil creates noticeably less carbon

DPM Mechanical Recoil Reduction System for Beretta 92/96 Centurion 4

Compliance Tested: MIL-SPEC

1 spring plug and 2 separate external springs are included with the system

The system includes 2 external springs

GLOCK 40 GEN 4 10mm 40s&w TRUE BLUE Gun Oil createsDPM MRS for Glock 40 Gen 4 10mm 6 Barrel This DPM Mechanical Recoil System functions due to the multi spring intricate rod (3 springs). The third spring, which is contained within the rod, controls the movement of the slide so it never rams on the frame. The system includes 3 different in length washers and 2 external springs. Washers differentiate only the buffer force (slide full open position) and the external springs differentiate only the slide