CZ BRNO 452 Bolt Action .22 Rifle

The CZ 452 is a series of magazine-fed bolt-action rimfire repeating rifles manufactured by the Czech firearms manufacturer Česká Zbrojovka Uherský Brod. First introduced in 1954 as the BRNO Model 2 ZKM 452, the Model 452 is a refinement of the CZ Model 1 ZKM-451 .22 calibre rimfire bolt-action training rifle that first appeared in 1947. The CZ 452 features a carbon steel barrel that is threaded into the receiver frame, except for rifles chambered for .17 HM2 which have the barrel pinned to the receiver. Rifles of recent manufacture feature hammer forged and lapped barrels. The receiver has a dovetail rail for mounting a telescopic sight. The dovetail is either 11 mm or 3/8″ depending on the version and cartridge. The trigger mechanism is adjustable for weight of pull.