M739A1 Point Detonating/Delay (PD/DLY) Fuze

and USMC utilize the M739A1 PD/DLY Fuze for both training and tactical operations. The M739A1 PD/DLY Fuze is composed of a one-piece solid aluminum body with a standard 2-inch threaded base. Five modular subassemblies are incorporated as the functional fuze components. The M739A1 PD/DLY Fuze contain

s an Impact Delay Module (IDM) assembly that provides fuze initiation delay based upon the completion of mechanical actions caused by projectile deceleration. In the delay mode, the fuze will function 3-6 milliseconds after passing through