A 22LR conversion kit is available.
You will have to contact SIG. Some things depend on when the weapon was made.
You have to call SIG
You call Sig Sauer
According to the Sig website, the 220 match has a longer barrel and adjustable target sights.
You have to call SIG to find out.
You will have to call SIG to find out.
You will have to call Sig to find out.
e Germany
You will need to call Sig
AFAIK, no.
SIG sn's are not in the public domain. You will have to call them.
You will have to call SIG to find out. No published data.