Looking to maybe add some ammo to the front of your Shockwave or other shotgun?
Maybe you just want to add a morale patch to it.

We've found a slick little piece that can replace the forward strap on a Shockwave or be added
to another shotgun with the supplied self-tapping screws.
Velcro if you want to remove the ammo holder and go with a morale patch.  Yes, it will hold mini-shells!