after the last range session with about 10 FTF due to ammo my rifle doesn't like I realized how annoying it was to stop everything, let go of my rand hand grip, make sure my face it outta the way and pull the charging handle. slightly inconvenient. so i've been looking at these side charging handle uppers. What do you guys think? this one seems the best: AR-15 M4 Side Charger Upper Receiver - American Spirit Arms yeah its expensive! with that i could start another AR-15 project... idk what do you guys think?