Hello all, I am on the hunt for a 657 MG Pre Lock to complete my collection of SS MGs. I have them all but this piece. Gun must be in excellent mechanical and cosmetic condition. Less than .005 Cylinder to barrel gap, no or minimal end play, as new barrel and no signs of abuse. Box and stuff desirable but lack thereof not a deal breaker. Pls let me know what you have and we can go from there. Thank you