The test firing held in Yuma this month will compare two soft-recoil systems mounted on hardstands and outfitted with XM351 barrel and NGC, which known as XM351 Soft Recoil demonstrator and Next Generation Cannon Soft Recoil demonstrator. pic.twitter.com/vOUPEQMj6R

— Ronkainen (@ronkainen7k15) December 9, 2022