Those industrial adhesives, when applied perfectly, are insanely strong.
We once took a couple of one inch thick ceramic bricks, and glued them with a one inch overlap. Each brick was meticulously cleaned with MEK, and the thickness of the glue was set by using thin adhesive dots.. so the glue was something like 0.003" thick.
Jumping on the bricks, we could get the ceramic to break, but never the bond. It was stronger than ceramic brick. We were making really big magnets.
While it works for shotgun ribs. There is only one way to find out. Check to see what the mfg's recommended thickness is, and use the activator spray.