The byrna sd kinetic kit comes in a protective, zippered carrying case with everything you need to get started: one (1) byrna sdxl launcher, two (2) 5-round magazines, two (2) byrna 8-gram co2 cartridges, two (2) 5-round tubes of byrna kinetic projectiles, one (1) 5-round tube of byrna eco-kinetic projectiles, one (1) #byrnanation medallion.The byrna sd xl (self defense) is the successor of the byrna hd.It has been re-engineered for optimal performance.Powered by compressed air (12g co2), the byrna sd xl shoots.68 caliber round kinetic and/or chemical irritant projectiles that can disable a threat from up to 60-feet away.It is an incredibly powerful and non-lethal self-defense weapon.Action: Semi-AutoCaliber: .68Capacity: 5rd