Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
I used RTV to hold the O-ring in place while the outer rim was torqued down. RTV seemed to work better than Super Glue, which the previous owner had used and made a mess and had to be chipped out with a sharp screwdriver.
Let us know how that McMaster O-ring fits.