If it's a NM rifle, it will have the heavy barrel, NM front and rear sight, NM flash hider, and NM trigger group./quote]
Not all NM M1As had heavy barrels, in fact more had standard weight barrels the the heavy barrel. But they did have NM sights, the rear had a hood that gave you 1/2 elevation changes and windage was 1/2 min clicks. The Front sight was tapered, thinner at the front, to give you a clear front sight even if you had the rifle angled a bit in aiming. The flash suppresser was the same as the standard except it was reamed with a #7 Reamer. The stock was bedded, and impregnated to keep out moisture. They also had NM stamped on the operating rod. The operating rod guide was round, not flat like the standard grades. The gas system was gluded or silver sodered to the barrel guide making a somewhat floated barrel. You should be able to squeeze the forearm and notice it clears the stock guide.
I'm not sure of the value now days, I bought mine in 1977 for $295 (serial # 068XX), mine has since be converted to a super match by the Guard, since I was shooting for them at the time.
