I hope it works for you, the pump guns in that configuration are too vigorous to control, best make the first shot a good one, let me say this "we was aiming them" up near our faces people shooting them from the hips can largely just be making noise. One wonders if one of those ar15 pistols with the braces on them would be a better idea?
Believe it or not, it's perfectly legal, and common practice, to put one of those braces on the Shockwave or Tac-14.
