Those are leftovers form the Parker-Hale shutdown. There are also a bunch of investment cast P-H receivers available from varoius places, some which use Mauser bolts and others which use a bolt from an 03 Springfield. Since they need to be finish machined and heat treated, they're "non-gun" paperweights, not serial numbered and not subject to NFA rules. I've got about 15 of them stashed away and I've made up a few lathe fixtures to do the finish machining, barrel shank threading, etc. Any machinist worthy of the name can turn one of them into a very nice custom rifle.
Jerry
