Q LLC Sugar Weasel Upper 5.56 NATO 13"

You've asked for it and they've made you wait long enough. Q LLC is finally offering individual upper receiver assemblies. Designed as a replacement upper for your standard Sugar Weasel or for whatever Frankenstein build you can think of. These uppers come in two variations a 13" 1/2-28 threaded, tapered 1:7 twist 5.56 barrel and a 13", 5/8-24 threaded, tapered 1:6 twist .300 Blk barrel both with their adjustable gas block in a pistol length gas system. Specifications: Barrel Length: 13" Twist: 1:7 Thread: 1/2x28 Caliber: 5.56 NATO Upper Receiver Color: FDE Rail Color: Grey Muzzle: Tapered Cherry Bomb Muzzle Brake