dual purpose munition

Interesting US Patent granted on Feb 2nd 2010..

Assignee:The United States of America as represented by the Secretary of the Army (Washington, DC)

Title ~ Dual purpose munition

A dual purpose munition includes a housing; a shaped warhead disposed in a front interior of the housing; a vertically orienting explosive disposed on a front end of the housing; a safe and arm device explosively connected to the shaped warhead for arming and detonating the shaped warhead; a dual sensor circuit comprising an E-field sensor board, a B-field sensor board and a processor board; and a power source connected to the dual sensor circuit and the safe and arm device.

reading further within the patent you will find the mentioned:

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention is a dual purpose munition (DPM) that may be realized in the form of a 40 mm grenade, although other sizes are within the scope of the invention. The 40 mm size allows the emplacement of the DPM with available gun systems such as the Mk-19 40 mm machinegun, M 203 grenade launcher and Metal Storm dispenser system. The DPM may also be dropped from an air frame dispenser or by hand.

full details:

http://patft1.uspto.gov/netacgi/nph-Parser...p;RS=PN/7654458