Alliant Techsystems has been awarded a firm-fixed-price contract by the US Army Contracting Command to reconfigure M4 selectable lightweight attack munitions (Slam).

Under the $45.7m contract, the company will provide for the renovation of the M4 SLAM to the new M4A1 configuration.

The contract also includes production of the M320A1 SLAM improved functional trainer kits.

M4 SLAM is a small multipurpose landmine featuring a passive infrared sensor, and a magnetic influence sensor which allow it to be used as a demolition munition, off-route mine or full-width belly attack mine.

The SLAM is used against armoured carriers, aircraft, wheeled or tracked vehicles, small fuel-storage tanks and ammunition storage facilities.

Work will be carried out at the company’s facilities in Minnesota, US, with an estimated completion date of 15 June 2015.