Made of 6061 Aluminum, this unit utilizes a spring loaded firing mechanism and a trip trigger. When the trigger is disturbed while loaded with a 12 gauge blank, the unit will discharge. This device is compatible with 12 gauge power blanks, flares, and pepper gas depending on situation and requirement. Used for animal control, property and campsite protection, driveway and trail security. For outdoor use only. Keep away from flammable materials. NEVER USE LIVE AMMO!! Made in the U.S.A.