Grendel #3 Is the BIL 16 inch rifle, he finally made it over so I watched him and he put it together. He put all the things I have on my FDE one I am keeping. Aero upper and ambi lower, carbon fiber hand guard, G2S trigger, Titanium gas block, melonite gas tube from Aero, Titanium forward assist, NiB BCG from Precision Firearms, Hogue buttstock, pistol grip by Ergo, Norgon ambi mag release, Badass ambi selector, and JPSCS. That is about it. Nice lite rifle. Hope he gets out today and fires it!! BANG BANG!!!!