About 15 years ago I was working in a gun shop 20 miles south of Washington, D.C. in Northern Virginia. A guy came in one day with a wood stock and triangle hand guards for an M16. He claimed that some branch of the military was considering using them back in the mid-1960's, but they didn't go for it and he ended up with a set. He was asking $100 for them, and they didn't look like some handmade junk. Anybody ever heard/seen any of these?