掌心雷
zhǎng​xīn​léi

small handgun

掌心雷 zhǎng​xīn​léi
small handgun
A compact, easily concealed handgun, originally referring to the type of pistol designed by Henry Deringer.
palm thunder
A type of Daoist magic where a practitioner is said to be able to summon thunder or cast lightning strikes from the palm of the hand.