US Patent 9644916 Modular weapon station system

A modular weapon station includes a rotatable frame adapted to be mounted on a platform and is configured to have a removable cradle with a weapon mounted thereon. The rotatable frame may also include a removable ammunition feed chute, an optical sighting unit, and azimuth and elevation drives. The modular weapon station may also include a rotatable drum and ammunition loading assembly coupled with the rotatable frame assembly. The rotatable drum and ammunition loading assembly may be located in an under armor position such that an operator may replenish ammunition from an under armor position and not be subjected to hostile fire while replenishing ammunition. Belted ammunition rounds may travel along an ammunition feed path stemming from the loading assembly within the rotatable drum to a selected weapon.