This gun is rated against main battle tanks at over 1000 yards.
Active armor, "Zelda 2", an explosive reactive armor suite:
"Zelda", a spaced array passive system proof against RPG and 23 mm APCBC Russian ammunition: 
This is Kasman", designed for urban warfare: 
The Kasman is a M113 equipped with an all new fixed superstructure, spanning both roof hatches of the Zelda. The superstructure is lavishly equipped with vision blocks made of armoured glass as well as six firing slots, one up front, one in the rear and two on each side. The firing slots are capable of taking up an FN MAG 7,62 mm machine gun.
The two vision blocks and the firing slot in the rear of the superstructure are placed in a hatch which can be opened downward. Two searchlights are placed on the superstructure's roof and can be operated from within the vehicle. Another option is the placement of a megaphone on top of the superstructure for psychological warfare.
The internal fuel tank has been removed and replaced by two external fuel tanks on the rear of the vehicle. This is to serve crew safety.
Recently, an improved version of the Kasman has appeared. This vehicle has a shallower superstructure with angled sides and protrusions for the firing slots. Furthermore, the number of vision blocks is reduced and the dimensions of the superstructure have been considerably reduced as well. The vehicle, of which the exact designation is unknown at the moment, is equipped with IS-10 grenade discharges with CL-3030 smoke grenades.
