25cal marauder breech Oring question

Standard buna orings should suffice, which by the way are made out of nitrile. I would do hardness 70 for the breech seal to ease installation. Here is a link: https://www.theoringstore.com/store/index.php?main_page=product_info&cPath=367_23_22&products_id=1107  If you end up ordering them from the oring store I would recommend going ahead and ordering a full set of all orings for your Mrod to have on hand.


4BD38E1F-0AF9-463F-BC34-591311F9C401.1620073686.jpeg




 
Standard buna orings should suffice, which by the way are made out of nitrile. I would do hardness 70 for the breech seal to ease installation. Here is a link: https://www.theoringstore.com/store/index.php?main_page=product_info&cPath=367_23_22&products_id=1107  If you end up ordering them from the oring store I would recommend going ahead and ordering a full set of all orings for your Mrod to have on hand.


4BD38E1F-0AF9-463F-BC34-591311F9C401.1620073686.jpeg




I have a full set for the MRod but I blew up 2 breech orings and I don’t have anymore. Thanks for the site👍