You are right and I was wrong. What I missed was the open ring barrel protector/reinforcement of the 3.5 inch (~90mm) rocket launcher. Sorry if I offended your judgment.
My day was 1956-1962 in which we were trained with the 3.5 inch RL tube. It was not an issued infantry weapon at that time, and we didn't spend much time with it. It made a heckuva bang and back-blast, giving the weapon's position away.
40 posted on 03/15/2014 1:28:57 PM PDT by imardmd1
(Fiat Lux)