 In the original configuration, those guns were ill-suited for fighting tanks because of their relatively low muzzle velocity, limited traverse (only 6°), and lack of a suitable suspension (which resulted in a transport speed of just 10–12 km/h).It was decided to solve the traverse and mobility problems by mounting the 75 mm barrel on the modern split trail carriage of the 5 cm Pak 38 anti-tank gun.To soften the recoil, the barrel was fitted with a large muzzle brake.