Gear Head Works KSG Beast Muzzle Device Black. It is not just for show though. It features M-lok slots on 3 sides to add a rail light hand stop or whatever else you would want on the front of your favorite shotty.The use of a choke adapter is strongly recommended and we will not warranty this part if used without one. DO NOT use a muzzle brake with this as it will direct gas directly to the inside walls causing erosion from blast particles as well as gas venting from the slots in several directions. Fortunately the Beast muzzle device hides the choke adapter from view as to not detract from the lines of the gun as it would without it. Specifications for Gear Head Works KSG Beast Muzzle Device: Manufacturer: Gear Head Works Weight: 0.35 lb Finish: Matte Black Condition: New Color: Black Fabric/Material: Aluminum Features of Gear Head Works KSG Beast Muzzle Device Has limited rotation sling cups on each side so now you can have that quick detach sling. It still retains the factory style sling loops as well.The crenulated edge gives you a pain compliance feature for law enforcement as well as grip for door breaching. Package Contents: Gear Head Works KSG Beast Muzzle Device Gear Head Works GHW-25: KSG Beast Muzzle Device Black