I'm looking to trade my Aero Precision stripped lower. I'm not interested in selling unless a really great offer comes along. Things I would be interested in trading for: a high quality Daniel Defense rail, 223/5.56 ammo, M&P 9, AR 15 parts (nice stock, optics, etc.), or anything tactical in nature. I would also be willing to trade towards an AK47/74 or an M&P15-22 or a nice AR15 upper. I will add cash or something else on my half. The Aero lower is model X15 and is listed as "Multi" caliber. It is brand new, and it is definitely a very high quality lower. If you have something other than the stuff I have listed above, feel free to shoot me an offer. You would be surprised about what I'm interested in.