CMMG AR-15 Special Purpose Rifle Complete Upper Assembly .223 Rem/5.56 NATO 18" Medium Contour Barrel Smith Vortex Flash Hider Midwest SS Free Float Rail Flat Top Black

CMMG, Inc.
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Each CMMG SPR barrel is individually magnetic particle tested to ensure quality. Built with CMMG Forged A3 Flat Top upper receivers with T marked optic rail slots and extended feed ramp cuts (M4 feed ramps) for reliable chambering. SPR Barrels are engraved CMMG WASP 5.56 NATO 1/9. Each CMMG M4 Upper is pre head spaced and test fired before shipping and include a Semi-Auto Bolt Carrier and Charging Handle. CMMG uppers are built to Mil-Spec standards and will mount onto any standard mil-spec AR15 lower receiver assembly.

Specifications and Features:
4140 chrome moly vanadium steel
Not Chrome Lined
5.56x45 NATO chamber
Caliber: .223
1/9 Twist Rate
1/2x28 RH Muzzle Thread
11 degree recessed target crown
Medium Contour 18" Barrel Profile
VORTEX Flash Hider
Midwest Ind. Rifle Length "SS" Series Free Float Forearm
Forged A3 upper receiver
M4 feed ramps
Semi Auto Bolt Carrier and Charging Handle Included
T marked with extended feed ramp cuts (M4 ramps)
Made In USA
Does NOT fit Colt lowers with sear block.