Magazine tube detent swage - XS Sight Systems Magazine Tube Detent Swage - Rem 12 ga RE-7000-1

I wanted to install a mag tube extension on my Remington 870, but did not want to drill out or file down the detents in the mag tube. This swage was the answer to that issue. You hammer it in, pull it out (I had to use some vice grips), the detents are gone and your mag tube is intact. I don’t know how many times you’ll use it on others’ shotguns, but it was worth getting it to me.