The ZKM 452 ( also:. BRNO CZ 452 or mod 2 ) is a small-bore rifle of the Czech arms manufacturer CZ in Uherský Brod. The gun is available in calibers .22 LR, .22 WMR and .17 HMR.
The rifle was manufactured virtually unchanged from 1956 to 2011 and replaced by the Model 455. For left-handers still two different versions of the model 452- 2E are manufactured.