Sorry the picture isn’t great. Transcription indicates it’s a 75 mm gun around Dilligen. Kind of looks like a 75 mm M1897 on M2 carriage but I’m not an expert at all
Edit:
Think I solved the mystery. Think it is likely a 3 inch M5 anti tank gun
I was looking at that kit, looks sweet. Think I’ll get it down the road! Want to pair it with a dragon M2A1 half track for a winter scene featuring XX corps in January 1945