I did a little shopping for myself over the past couple of days... I purchased a complete Gen II New Frontier lower, for plinking and range fun. I also bought a stripped Palmetto lower to do a little more serious build on. Anyway.. Looking for an upper. Found a couple of websites with cheap uppers ( oracles and Del-Ton ). MY experience with AR-15s have been in LE/Military only, what they gave us, we used. Now, going out and spending $600 + on an upper right now is not really an option. Looking for a good, reliable upper. Any Tips ?