I am looking for a source for the 3 Grenade Launcher Sight springs for a MAS 49/56 that I am refurbishing. I was referred to this forum by Buddy. The springs were damaged during removal, so I need to replace them. From what I have read, they are .452" long, .111" OD, the wire size is .023", and there are 12 coils. Having trouble sourcing them, so I need help.