I have a ruger American in 762x39 that uses mini 30 mags I’m looking to put a chassis on her. Im looking at the or oryx or lss mdt chassis but i don’t see any mags In 762x39. Dose anyone know of alternative caliber mags I could use in either of these chassis that would cycle reliably. There’s also the lss that takes ar mags doses anyone know if it takes the 762x39 ar mags and if that’s a option.