Those inserts are generally removed when barrels are replated, as no steel items can be exposed to the plating solution for fear of contamination. (Sometimes, but rarely, they are epoxied over instead.)

We turn up new ones, as they're almost always damaged when removed,
_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

Check us out on Facebook! Please "like" our page!