Release Firing Device M5

General: The Release Firing Device M5 is a mechanical device designed for firing char-ges by the removal of a restraining load from the device. A load of at least five pounds is required. When the load is removed, a spring-loaded striker swings over to detonate the percussion cap.

Description: The parts are a rectangular metal body and release plate, a striker and spring, a safety pin, and a standard nipple base. The release plate, when held down by the safety pin or by a weight, prevents the striker from swinging over to detonate the percussion cap.

Operation: When the device is set with a weight on top and the safety pin removed, it is in an armed condition. If the restraining weight is removed, the release plate is for-ced up by the striker as it swings over to detonate the percussion cap.

Remarks: Because of difficulty in handling, the M5 is considered a temporarily stan-dard item which will ultimately be replaced.

Figure 249. Release Firing Device M5