Review on Newborn 620AL-GREEN: Aluminum Barrel Round Rod Gun for Newborns by Brandon Rogers

First, the picture is not representative. Mine had a gray mechanism and gray rings. never mind But I couldn't get the rings off the thing. I had to clamp it in a vise with protective polymer inserts and unscrew it with a pipe wrench, and even that isn't easy. I've been using newborn caulk guns for many years and this is the first time I've come across it. I wish it came with the black rings they used. Now that I've taken them off I can't put them back on without much resistance and they get stuck again. Absolutely useless for me.