Our bangstick powerhead barrels are interchangeable. You can change the original caliber of your Bangstick simply by changing the Powerhead barrel to your choice of .223, .357, or .44 magnum. The .223 "High performance" Powerhead is an excellent choice for Gator hunting. You also might find the bullets more affordable. (Note: This barrel is an accessory for our bangstick to only change caliber size.)