Bullard reports that, while the munitions of the 144th Regiment were limited by what they could carry, this included eighteen machine guns (Type 92 Juki), three battalion (infantry) guns, two rapid-fire guns and two regimental artillery guns. The mountain artillery battalion deployed with three companies servicing a gun each, while leaving one gun in reserve at Buna. The 44th Regiment deployed with thirteen medium machine guns, three battalion guns, one regimental gun and one rapid-fire gun. Anderson indicates that the regimental and mountain artillery battalion guns were of the 75 mm Type 41, while the infantry guns were of the 70 mm Type 92. By virtue that the 37 mm guns were described as "rapid fire", these were most likely the dual-purpose Type 94 anti-tank gun which was a rapid-fire gun, as distinct from the earlier Type 11 37 mm infantry gun. It employed an automatic cartridge ejection and was capable of firing up to 30 rounds per minute. Primarily a direct-fire weapon, using telescopic sights, it had an effective range of and could be broken down into four loads of . The Type 92 battalion gun was a 70 mm light howitzer capable of direct and indirect fire. It had an effective range of , firing a high-explosive projectile of . The Type 41 was a mountain gun capable of firing a high-explosive projectile to a maximum range of . It could be broken down into eleven units of not more than .