Me firing a friend's H&K flare gun. Projectile is a blue smoke round. These flare guns are cool because there are many sub caliber inserts you can drop in to fire 22lr on up to 12 gauge shotgun shells I believe. What's strange is the BATFE doesn't consider it a fire arm as they do a conventional pistol so you can buy one online and it ships straight to your door. Perfectly legal to use even with the sub-cal sleeves.
