M249 light machine gun
Know MoreThe M249 light machine gun (LMG), formerly designated the M249 Squad Automatic Weapon (SAW) and formally written as Light Machine Gun, 556 mm, M249, is the American adaptation of the Belgian FN Minimi, a light machine gun manufactured by the Belgian company FN Herstal (FN)...
Tunnel boring machine
Know MoreA tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strataThey may also be used for microtunnelingThey can be designed to bore through anything from hard rock to unnel diameters can range from one metre (33 ft) (done with micro-TBMs) to 176 metres (58 ft) to date...