First off, these are legal guns; fully papered and stamped!! I have a Smith Enterprises selectfire M14, I guess all parts are GI but rec., decent wood stock. Also have Olympic Arms select M16A1 with heavy bbl. otherwise looks just like my VN days. This piece also has the complete Olympic Arms 9mm conv. unit (auto) [upper, mag adapt., mags etc.] The initial upper had 'square' bolt head and gave problems, was returned to fac. and replaced with bolt with 'cone' head and works great. Both purchased in mid '80s. What might these be worth today? Though I don't really want to sell the guns, since I'm older now and have less places to shoot available; I am considering selling the 9mm conv. unit, any market for that? It's NFA as it has an 11 3/4 bbl.