the finnish army captured 25 pieces in 1941 and also pressed them into service. the same designation 122 k/31 was applied to both variants. because of shortage in heavy tractors, the gun was mostly used in coastal artillery. four pieces were lost; the rest remained in service after the war. during the 1980s some pieces had their barrels replaced with 152 mm barrels of the ml-20; the resulting pieces were designated 152 h 37-31. in the late 1980s all 152 h 37-31 and the remaining 122 k/31 received new 152 mm l/32 barrels manufactured by vammas, to become 152 h 88-31. only in 2007 did the finnish army begin to remove these guns from service.