I thought about welding,then milling,filing,but you would need to have it heat treated,to the orginial surface hardness.Did you hear anything about that? I think I recall reading that the miltary would just scrap them out,because of the cost,and the safety of a reheat treated firearm,so they don't go boom on you.It has the Isaphore screw in it,and I paid about $200 at AIM for it,several years ago.It is U.S Property marked,lend lease gun.Thanks