PARABELLUM 2.0 SHOULDER SYSTEM - Color: BLACK - Right Hand - Gun Fit: GLOCK 17 Gen 1-5, GLOCK 17 w/wo red dot, GLOCK 19 Gen 1-5, GLOCK 19 w/wo red dot, GLOCK 19X, GLOCK 22 Gen 2-4, GLOCK 22 Gen 2-4 w/wo red dot, GLOCK 23 Gen 2-4, GLOCK 23 w/wo red dot,...