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R As one of the least mechanically inclined AGN members, I ask a lot of questions and sometimes need to read and re-read posts before...
R Not sure but i think you can convert a 400 .22 to a 500 .25 . Not till you get into the .30 boss that things arent compatable.
R If you go to fxairguns.com/wp-content/uploads/2021/04/royale.pdf all the royale part numbers are shown with diagram. another way to...