Uppers
All upper receivers not chambered in 5.56x45 or .223 Remington come with one (1) caliber specific magazine. Capacity may vary depending on your State's laws.
When ordering an upper reciever unit please keep the following in mind: All complete uppers sold on-line come fully assembled, headspaced and test-fired. While each upper is made to mil-spec standards for dimensions and tolerances, uppers may fit differently on various lowers. Some may fit tighter than other, some may fit looser. Some may require minor fitting based on tolerance stacking. Each upper comes with a lifetime warranty and a 60 Day Satisfaction Guaranty. Please see our Warranty page for details.
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K10UR-OR: 10mm Optics Ready Upper Receiver, 16"
k10ur-orK10UR-OR: 10mm Optics Ready Upper Receiver, 16"
K10UR-OR Optics Ready Learn More$767.00 As low as: $747.00 -
K24P-40-UR-OR: 40 S&W caliber 11.5" AR15 Pistol/SBR upper
K24P-40-UR-ORK24P-40-UR-OR: 40 S&W caliber 11.5" AR15 Pistol/SBR upper
40 S&W; 11.5" Optics ready AR15 pistol or SBR upper Learn More$767.00 -
K24P-40-UR: 40 S&W caliber 11.5" AR15 Pistol/SBR upper
K24P-40-URK24P-40-UR: 40 S&W caliber 11.5" AR15 Pistol/SBR upper
40 S&W; 11.5" AR15 pistol or SBR upper Learn More$721.50 -
K24POR-UR: 5.56x45 AR15 pistol upper
K24POR-URK24POR-UR: 5.56x45 AR15 pistol upper
5.56x45 caliber 11.5" AR15 pistol or SBR upper, optics ready Learn More$572.00 -
K24P-UR: 11.5" barreled 5.56x45 Pistol/SBR upper
K24P-URK24P-UR: 11.5" barreled 5.56x45 Pistol/SBR upper
5.56x45 11.5" AR15 pistol or SBR upper Learn More$526.50