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.
Your idea is good or you could just chain and lock it to a pole or pillar. I have seen lock systems for ball type hitches but not for the lunette(pintle loop) of a military type trailer.