I saw a handful of em at a gunshow a few weeks back, a buddy and I dubbed the muzzle brake a "Face stabber"That's a door buster handle on shotgun. See how muzzle brake is jagged.
Kock gun, push forward on handle, jam muzzle brake into door area over lock or hinge and blammo.
Makes it more controllable and muzzle wont slip off placement.
Color combo is cool.
Gun is already a factory made item.
Mossberg model 500 chainsaw
MOSSBERG 500 CHAINSAW 12GA : Pump Action Shotguns at GunBroker.com
In my opinion a 12 gauge with a pistol grip is for movies only. With only the pistol grip they kick like a bull! Even tried the Knoxx breachers grip that has recoil built into the pistol grip and it was still more than you would want to shoot. (Could be the magnum loads though!)
I put the shoulder stock back on mine. Doesn't look as cool, but I can shoot it now so function over looks any day.