[doofus47]

I have an Arisaka type 38 carbine that is in fine condition with one weird quirk: After shooting a round or two, the front hand guard band comes loose and begins to rattle around the barrel like a drunken gymnast.
Apparently, a previous owner decided that there was some problem with the collar designed to retain the cleaning rod and front band in place. A little bit of dremel work on the tab that locked into the slot on the inside of the collar reduced it to just a fraction of its production size.
Of all the things to make smaller. I mean how often do you disassemble your carbine anyhow?
What's the professional opinion? Do I try to build up the tab again with some compound or do I search for a million years until I find a new retaining piece and then figure out how to remove the old/insert the new?

All input welcomed.
D47

pic attached.