CZ-USA manufactured this magazine for the CZ 550 chambered in .300 Winchester Magnum. The maximum capacity for this magazine is 3 rounds.
CZ products are imported exclusively by CZ-USA, a wholly owned subsidiary of the parent company, Ceska Zbrojovka a.s. Uhersky Brod, (CZUB) of Czech Republic. CZ firearms have been available through normal channels in the US since 1991, through such importers/distributors as Bauska, Action Arms and Magnum Research.
The CZ Ultimate Hunting Rifle (UHR) is a CZ 550-based rifle in .300 Winchester Magnum that comes in at 8 lbs, and includes a minute of angle accuracy guarantee to 600 yards. By maintaining quality control standards unheard of in the industry, the UHR delivers a level of accuracy formerly only available from high-end custom rifle gunsmiths.