Hello all, here is today's article posted on TheArmoryLife.com. It is titled “A History of U.S. Recoilless Rifles: Applied Physics in War” and can be found at https://www.thearmorylife.com/history-of-recoilless-rifles/.
The author didn't mention the Carl Gustav 84mm that's been used, and still used, in various models by the US for decades.
Carl Gustaf 8.4 cm recoilless rifle - Wikipedia
en.wikipedia.org
Carl-Gustaf system is a weapon system that is a recoilless and also a multi-purpose weapon system
The Carl-Gustaf® system is an unparalleled and supremely successful solution to the challenges faced by ground forces. The man-portable, multi-role weapon system allows dismounted soldiers to deal with multiple challenges on the modern battlefield.www.saab.com