" Bottom Metal ?"

I'm looking for bottom metal to replace the plastic parts on a 111 THXP long action with bottom bolt release. Anybody know what I need or where to find it ? I'm afraid I'll break the plastic pieces by tightening it too tight and want to be prepared to fix it.

If your looking for factory, try Savage arms or Northland Shooters Supply. Paid members have access to the classifieds including the want ads. Is the inlet the same for the plastic type as it is for the metal type?

I don't know as I'm new to Savages in general.