I purchased a used P220 about 6 years ago. I was searching for a 1911, but found the Sig instead. I have been reading the forum and decided that I really have no clue what I actually have. It is a double action 45 caliber P220 with G220 followed by 3 numbers. That is all the numbers I can find, so have decided that it may be a low serial number 220. It is made in Germany and imported to Exeter, NH. I have never had a problem with the pistol and have had quite a few people try to purchase it from me for quite a bit more than I paid. I put a Crimson Trace laser sight on several years ago and am content my home is in good hands. It is not picky about the ammo it fires. Any help in identifying it would be appreciated.