CLEAN USED 10 round magazines for Mark 1 pistolsThese magazines are 10 round and have the small magazine button that Ruger uses on the 90062 9 round Mark 1 magazineFor older Mark 1 (right hand follower button *A-54* Frame) you will need to swap the button to the right side. WILL NOT FIT ANY 22/45 or any Mark 3 or 4 Will fit Mark 2 but this follower button is best used in Mark 1 due to how the Bolt Stop works in Mark 2We run these through an ultrasonic cleaner, not saying they are 100% clean but we do clean themWe are NOT going to send you a piece of rusted crap although some FEW may have light speckling that can be cleaned easy with steel wool. OBVIOUSLY we can not spend hours investigating these mags, They are clean used mags just like the ones you use and own. Click Here for our page on how to properly adjust your magazines to feed properly *NO RUGER magazine comes from Ruger perfect.