"The Quigley" SPR 18" UPPER - 5.56 ENHANCED

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The Quigley upper was designed to maximize the capability of the .223 and 5.56 NATO cartridge. Developed with extended distance engagements in mind, the SPR Upper takes full advantage of the ballistic capability of the cartridge, without sacrificing weight and mobility. This version features an upgraded 14" Midwest Industries lightweight M-Lok rail, with two integral QD sling sockets, and a Picatinny rail section for end-user customization.

This Upper Features:

  • 18" Match Barrel, 4150 Chrome moly vanadium, 1/7 Twist Chambered in 5.56 NATO.
  • Rifle length gas system.
  • 14" Midwest Industries M-Lok Rail.
  • A2 flash hider. 
  • Grey Ghost Upper Receiver: Machined from forged 7075-T6 Aluminum, Black Anodized.
  • Bootleg Bolt: Machined from S7 Tool Steel, Lithium Isonite Coating, 4 Setting Adjustable Vent System relieves excess gas pressure created from suppressor use.
  • Charging Handle Included