DRIVER'S HATCH MOUNT PERISCOPE RETAINER REPAIR (M24 IR PERISCOPE) (Sheet 3 of 4)
Using hammer and punch, install two grooved pins (A) and two pins (B) into mount (C).
Position four retainers (D) and one extension spring (E) for each two retainers (D).
Install each of the four retainers (D) with a shoulder screw (F).
Go on to Sheet 4