bump stock
[ buhmp stok ]
/ ˈbʌmp ˌstɒk /
noun
a replacement gunstock that enables a semiautomatic rifle to discharge bullets at a much higher rate of fire, nearly that of a fully automatic machine gun.
Also called
bump-fire stock
[buhmp-fahyer stok] /ˈbʌmpˌfaɪər ˌstɒk/.
Origin of bump stock
First recorded in 2005–10; short for
bump fire (from its use of the recoil to bump the trigger against the trigger finger) +
(gun)stock
Words nearby bump stock
bummer,
bump,
bump into,
bump off,
bump start,
bump stock,
bump up,
bumper,
bumper car,
bumper guard,
bumper jack