One thing to note is that CZ-USA doesn't import every model. In Canada the CZ 457 Varmint AT-ONE comes in 3 lengths 16", 20", and 24" It comes with the MATCH chamber and the barrel threading is 1/2"-20 instead of the typical 1/2"-28. The CZ Varmint MTR in Canada is also available in 16", 20" and...