Wrestling legend Jerry "The King" Lawler -- and his 27-year-old fiancee -- were both arrested in Memphis Friday morning after allegedly attacking each other ... and cops say a gun was involved.
It all went down at Lawler's home around 1 AM. Lawler's fiancee, Lauryn McBride, claims the 66-year-old hit her in the head and pushed her against a stove -- and then got an unloaded pistol and told her to kill herself.
But Lawler tells a different story, according to WREG.com, the WWE star told cops McBride scratched him in the face, fired a candle at him and then kicked him in the crotch.