That can get nasty. No MkII "detail" job is worth $120, unless, as noted, he replaced parts for you (and he should call before doing that, unless the weapon was not functionally safe w/o the repair; even then...)
Now, obviously, we're only getting 1/2 the story. Was the MkII left out, over the winter and rusted shut? Shot a bunch of rabbits, and got it soaked in blood? I'm only being half sarcastic, I've seen both of these scenarios.
Pretty much, your only recourse is 1) pay him (negotiate it down to $75/80), or 2) get a written list of what he says he did, and get quotes from a few other smiths in the area, and talk to your county sherriff and/or DA, since its theft/extortion/illegal business practices, depending on your state's laws.
Unless you've got lots of time and energy, I would probably do #1, and spread the hole's name far and wide.
Now, obviously, we're only getting 1/2 the story. Was the MkII left out, over the winter and rusted shut? Shot a bunch of rabbits, and got it soaked in blood? I'm only being half sarcastic, I've seen both of these scenarios.
Pretty much, your only recourse is 1) pay him (negotiate it down to $75/80), or 2) get a written list of what he says he did, and get quotes from a few other smiths in the area, and talk to your county sherriff and/or DA, since its theft/extortion/illegal business practices, depending on your state's laws.
Unless you've got lots of time and energy, I would probably do #1, and spread the hole's name far and wide.