M1A1

Description: This adapter consists of a stabilizer and fin assembly to which are atta-ched three spring-steel fingers. It is designed to project the standard fragmentation hand grenade by means of the rifle or carbine. The Hand Grenade Mk II is assembled to the adapter with the fingers engaging the grooves in the grenade body. When the gre-nade is assembled to the adapter, the safety lever of the grenade is inserted in the arm-ing clip. The safety lever is held in place by the arming clip until the grenade if fired. On set-back, the clip lags and so is removed over the safety lever, which is the thrown off by the rotating striker. The striker hits the primer, igniting the 4.5-second delay, after which the grenade explodes.

When the grenade is assembled to the adapter and safety pin removed, the lever bends outward, on account of pressure from the striker. If the lever is struck on its outer surface, near the striker, while in this condition, it is possible that the lever may spring loose from the fuze and release the striker, allowing the fuze to function. Care should be exercised, once the safety pin is removed, to prevent the lever from being struck.

M2

Description: This adapter consists of a stabilizer and fin assembly and a metal set-back band. To the stabilizer are attached four short spring-steel clips. It is designed to project the following grenades: CN-DM-M6; CN-M7; H.C., AN-M8; AN-M14; M16; and M18.

The grenades are assembled to the adapter with the clips holding over the ridge at the base of the grenade. The set-back band contains a short spring and fits around the grenade, over the safety lever. It holds the safety lever in a safe position after removal of the fuze safety pin. When the grenade is fired, set-back causes the band to slide off the safety lever toward the base of the grenade. This permits the safety lever to spring outward and the striker to ignite the fuze. The fuze ignites the grenade in approximately one to one and a half seconds.

Figure 235. Projecton Adapters M1A1 (left) and M2 (right)