This squirt gun packs serious heat.

A 54-year-old convicted felon was reportedly arrested in California for carrying a “Super Soaker” gun that had been modified to hold a shotgun shell instead of water.

Fresno police told KMPH-TV the arrest came shortly after they had been briefed about people who convert toy guns into weapons.

Police said they encountered Randy Smith walking the streets while carrying the weapon around his neck in a sling.

"He took the Super Soaker apart, was able to fashion a barrel to where he was able to make what's considered a zip gun, where you can fire one round through it,” Sergeant Mark Hudson told KMPH. “In this case it was a 20 gauge shotgun shell."

A local gun shop employee told the TV station such a modification could be made for as cheap as $30, but would be about as safe for its handler as “putting a hand grenade next to your head.”

Smith was reportedly arrested on a slew of weapon charges.