After playing around with many different setups (optics, grips, stocks), I have finally completed my AR just the way I want it. Couldn't be happier with my BCM upper, and I built the lower. Bet this will make the Magpul fans happy... BCM 16" Midlength Upper with DD Omega Rail Noveske Lower Young National Match Light BCG Magpul: ACS stock, MOE Grip, XTM Rail Panels, ASAP plate, MBUS, BAD lever, Trigger guard, and the AFG BCM Gunfighter Charging Handle Aimpoint Comp M4 w/ Larue Mount Primary Arms Weaponlight and Vortex Flashider Gun has about 500 rounds through it with no hiccups at all... very very pleased. Oh and I just got the Camelbak Delta-5 off of AR15.com and could not be happier. Excellent rig.