Czech Hunter 39 Mp4 Today

Alternatively, maybe it's a version chambered for .22 LR, and the MP4 refers to a modification of the trigger or barrel. For example, a shortened barrel or adjustable trigger system. But without official data, this is speculative. The best approach is to explain the standard CZ 39 Hunter, then note that there's no official variant called MP4, but perhaps there are variations with different features that users might refer to informally as MP4. Alternatively, there might be a confusion with another model from a different manufacturer.