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Q LLC Sugar Weasel Upper 5.56 NATO 13"

AR-15 Complete Upper Receiver

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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.



  • 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
More Information
Product Type AR-15 Complete Upper Receiver
Manufacturer Q, LLC
Thread Pitch 1/2x28
Twist Rate 1:7
Barrel Length 13"
Caliber 5.56 NATO

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