Great. Thanks everyone for the information and recommendations. You guys have been very helpful. Now I'm going to be on the lookout to see what I can find for sale.
I'm looking to buy a used FX Impact. 30 cal with 700mm barell and slug liner. Should I try to find an upgraded Mk1 or spend the extra money on a Mk2 or Mk3. This will be my first FX air rifle. Looking for any suggestions.