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I have one in .177, but I recently converted it to .22 with a custom made probe to be able to swap calibers without having the need to take the gun completely apart to swap the probe.
Now I can swap the probe nose seperately, just like a Impact. 
Trigger is the match type like the one fitted to the Boss, and it comes regulated as standard.
The stock is very ergonomic, and is a joy to shoot. Too bad they are discontinued.