The CZ 511 is a semi-automatic .22 LR rifle made by Česká Zbrojovka Uherský Brod at the Česká Zbrojovka Strakonice factory in Strakonice, Czech Republic. They had stopped selling the rifle to the USA at one point, but there became a high demand for them in the USA, and they started to import them again. It features a walnut stock, iron sights, an 8 round detachable magazine, and an 11 mm dovetail groove on the receiver to mount a scope on. It also has factory built-in swivels to mount a sling on.
Production of the CZ 511 and CZ 581 ended in 2010, replaced by the CZ 512 range.
References
CZ 511 Wikipedia(Text) CC BY-SA