The artillery support of a NK and CCF division (about 11,000 strong) included 12-122mm howitzers, 24-76mm guns, and 12-SU 76mm self propelled guns, plus anti-tank weapons. In addition, the regiments and battalions had their own supporting weapons.
Specifically addressing mortars, each regiment had 6-120mm units. Each battalion had 9-82mm mortars, and each company had their own 61mm mortars. These mortars were the simple, reliable Soviet types used by all their satellite countries, and could fire the US 81mm and 60mm rounds.
The 120mm mortars were the heaviest artillery used by the CCF attacking X Corps in Chosin, with the initial assaults by the CCF 124th division supported by nothing heavier than their 82mm mortars.
