Quote Originally Posted by Gareth W-B View Post
You were done then (albeit best part of 40 years ago when the Mk.I Hawk was current ), as they came with, and were marketed with, two interchangeable, bayonet fitting barrels, one in .22, and one in .177. Same with the Mk.II, but by then (the mid 1970s), the barrels were, as stated above, secured via screw threads and grub screws. Only the Mk.III Hawk was purposely sold with just one barrel, which was fixed: G.
I can guarantee that my MkII was bought new, and it was definately supplied with just a .22 barrel. If mine was supplied that way, and so was IanU's MkI it would seem to sugest that it may have been an option. What would a shop gain by removing the additional barrel? Especially a shop like the one mine was bought from that didn't sell air gun parts?