Hi, I just purchased a FN Model 1922 Pistol, Serial Number 237363. It is in .380, has Horn Grips, a Lanyard Ring with a Dime size ring on the left of the gun. It also has the wider trigger, appears to be rust blued & a "65" on the tang behind the right grip panel. Could you guys please tell me what it is? And can I just use standard 7.65 mags in it, as there was no mag in it when I bought it. Thanks in Advance!