Nerf Muzzle Break

This a remix of this nerf suppressor
http://www.thingiverse.com/thing:267881/#files

i turned it into a muzzle break with vent slits and breaching spikes, there is a version without spikes its the version labeled w-o spikes and holes, the one labeled w-o holes is the one with spikes and vent slits
*Update* doesn't fit on the nerf barrel far enough to twist and lock