the german 10.5 cm sk 18 was significantly lighter (5.64 t) while having about the same range (19 km), but fired much smaller 15 kg shell; on the other side, the 15 cm k 18 was heavy (combat weight 12.46 t), limited production (101 pieces) weapon, more comparable to the soviet 152 mm br-2. late in the war germans worked on a number of 128 mm field guns; one of these designs, the 12.8 cm k 81/2, was a gun with combat weight of 8.2 t, based on a heavily modified carriage of captured 152 mm ml-20. however, little is known about its characteristics; anyway, none of these 128 mm designs reached mass production.