The M303 Special Operations Forces demolition kit is a kit containing various metal and plastic parts which the SOF operator packs with C4 explosive to produce a

shaped charge A shaped charge is an explosive charge shaped to form an explosively formed penetrator (EFP) to focus the effect of the explosive's energy. Different types of shaped charges are used for various purposes such as cutting and forming metal, init ...

or an explosively formed penetrator. The kit also contains a tripod and sights for aiming the explosive device.

References

Federation of American Scientists
Special Operations Forces of the United States Military equipment of the United States {{Explosive-weapon-stub