The markings.
yes
500$
Best left to a trained gunsmith
I would start my search at Smith and Wesson first.
100-300 usd
50- 325 USD or so
You must call S&W for a correct answer.
You should call S&W to get the correct answer from them.
You will have to find someone who specializes in air gun repair.
100-3000 depending on specifics
About 3 percent or so.
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