I also agree with Ed. Gorilla glue is a fantasticly strong glue, but it sticks to everything, including your fingers, and cleanup is a pain. When it expands it turns a creamy white colour, and even if you wipe away the excess, the line will be visible on the mag bottom. I use this glue sparingly in the construction of my cases, and certainly not anywhere I don't want the glue line to show. I use Titebond (similar to Elmers) Yellow wood glue for most joins, it dries darker and the seam is less visible.
Dok