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The body of the hand grenade simulator consists of a cylindrical paper tube (closed at both ends), containing one and one quarter ounces of photoflash powder. The simulator body is 1.6 inches in diameter (2.18 inches across time blasting fuse igniter) and 3.75 inches long (4.27 inches with time blasting fuse). A length of time blasting fuse extends from the center of one end of the body and, after a 180O bend, is inserted into time blasting fuse igniter M3A1 taped to the side of the simulator. The time blasting fuse igniter contains a double pull coed, a ripple wire coated with a phosphorous friction composition, a small metal cup filled with ignition composition. There is a cellulose nitrate coating on the phosphorous coating and on the ignition composition. The sealing cap is held in place during shipment and handling by a spring type wire safety clip.
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