Original U.S. Signals, Underwater Sound (SUS) MK 57 Dummy “Practice Depth Charge” - Inert French Holsters and just in front of

and just in front of it is a faint CROWN / BROAD ARROW / 1805 viewed mark

It was used for training in handling and throwing of the fragmentation hand grenade MK2

It is maker marked on the shaft with Ken Krome BARGER MFG

and is original to the liner

Original U.S. Signals, Underwater Sound (SUS) MK 57 Dummy “Practice Depth Charge” - Inert French Holsters and just in front ofOriginal Item: Only One Available. This is a wonderful example of a hard to find Practice Depth Charge, Mk 57 Signals, Underwater Sound Dummy device. This is an inert, practice device and was never intended to be used as an explosive device nor can it be used as such. It is in total compliance per the current BATF regulations governing ordnance. Not Available For Export The SUS is a small, expendable, bomb shaped device 3 inches in diameter and 15 or