18" Mid/Rifle

18" AR-15 5.56/.223 Upper Assemblies – Precision, Durability & Performance

Enhance your AR-15 with our 18" 5.56/.223 Upper Assemblies, designed for superior accuracy, reliability, and performance. Featuring high-quality, mil-spec components, these uppers include a premium barrel with a precision 1:7 twist rate, a durable M-LOK handguard, and a parkerized finish for long-lasting durability. Perfect for precision shooting, hunting, and tactical applications, our 18" uppers offer the ideal balance of velocity and control. Customizable finishes and configurations available for your ideal build.

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  • AR-15 .223 WYLDE 18" STAINLESS UPPER ASSEMBLY /15" M-LOK/BCG&CH
    AR-15 .223 WYLDE 18" STAINLESS UPPER ASSEMBLY/15" MODULAR M-LOK/BCG&CH:Barrel - 18" 416r stainless steel hbar contour barrel. Hardened to 26-32 rc and stress relieved. Chambered in .223 Wylde, 1-8 rh twist. Button rifled. .750 under gas block.  1/2-28 threads, completed with a multipor..
    AR-15 .223 WYLDE 18" STAINLESS UPPER ASSEMBLY/15" MODULAR M-LOK/BCG...
    $399.95$669.95
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  • AR-15 5.56/.223 17.1" Pentagon Black Nitride Upper Assembly / Mlok / Triport
    AR-15 5.56/.223 17.1" Pentagon Black Nitride Upper Assembly / Mlok / Triport. This is a custom upper assembly for an AR-15 firearm. It features Pentagon style spiral flutes in black nitride coating, 15" slim profile Mlok rail and triport muzzle brake, which use ports to redirect gases and ..
    AR-15 5.56/.223 17.1" Pentagon Black Nitride Upper Assembly / Mlok ...
    $259.95$549.95
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  • AR-15 5.56/.223 17.1" Pentagon Stainless Upper Assembly / Mlok / Predator
    AR-15 5.56/.223 Pentagon Stainless Upper Assembly / Mlok / Predator. The upper is custom build to order, please allow 7-10 days for completion.Upper Includes:·        Assembled AR-15 Upper Receiver ·         ..
    AR-15 5.56/.223 Pentagon Stainless Upper Assembly / Mlok / Predator...
    $299.95$549.95
  • AR-15 5.56/.223 18" Stainless Steel Diamond Upper Assembly /15" Mlok
    AR-15 5.56/.223 18" Stainless Steel Diamond Upper Assembly /Mlok Barrel - 18" 416 stainless steel hbar contour barrel. Hardened to 26-32 rc and stress relived. Chambered in .223 Wylde (shoots both, 5.56 NATO and .223 Rem). 1-8 rh twist. Button rifled. .750 under gas block. Diamond fluted. 1/2x..
    AR-15 5.56/.223 18" Stainless Steel Diamond Upper Assembly /Mlok ...
    $299.99$449.95
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  • AR-15 5.56/.223 18" Stainless Steel Spiral Fluted Upper Assembly  / Mlok
    The AR-15 5.56/.223 18 Stainless Steel Spiral Fluted Upper Assembly / Mlok is an integral component of the AR-15 firearm. Product Features:1. Caliber: This upper assembly is built to fire both 5.56 and .223 caliber ammunition. 2. Barrel: This upper assembly includes an 18-inch barrel, the ..
    The AR-15 5.56/.223 18 Stainless Steel Spiral Fluted Upper Assembly...
    $269.95$399.95
  • AR-15 5.56/.223 18" stainless steel straight fluted tactical upper assembly
    AR-15 5.56/.223 18" stainless steel straight fluted tactical upper assembly; 1/2-28 threads, completed with triport muazzle brake and crush washer. Barrel - 18" 416R stainless steel hbar contour barrel. Chambered in .223 Wylde (shoots both 5.56 NATO and .223 Rem). Hardened to 26-32 rc and stres..
    AR-15 5.56/.223 18" stainless steel straight fluted tactical u...
    $269.95$449.95
  • AR-15 5.56/.223 Wylde 18" HBAR UPPER ASSEMBLY / QUADRAIL
    An AR-15 5.56/.223 Wylde 18-inch stainless steel upper assembly with a quadrail handguard represents a configuration of the upper part of an AR-15 rifle that is designed to be versatile, accurate, and capable of handling high volumes of fire. Each component carries specific implications for the perf..
    An AR-15 5.56/.223 Wylde 18-inch stainless steel upper assembly wit...
    $249.95$399.99
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  • AR-15 5.56/.223 WYLDE 18" MID BLACK CLAW PREMIUM UPPER ASSEMBLY / MLOK
    AR-15 5.56/.223 WYLDE 18" MID BLACK CLAW PREMIUM UPPER ASSEMBLY / MLOKBarrel - 18" 416R stainless steel hbar contour barrel. Hardened to 26-32 rc and stress relieved. Chambered in 5.56 NATO, 1-8 rh twist (shoots both, 5.56 NATO and .223 Rem). Double color spiral flutes. Button rifled, 6 Grooves. .75..
    AR-15 5.56/.223 WYLDE 18" MID BLACK CLAW PREMIUM UPPER ASSEMBLY / M...
    $299.95$499.95
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  • AR-15 5.56/.223 WYLDE 18" MID BLACK WOLF UPPER ASSEMBLY / MLOK
    AR-15 5.56/.223 WYLDE 18" MID BLACK WOLF UPPER ASSEMBLY / MLOKBarrel - 18" 416R stainless steel hbar contour barrel. Hardened to 26-32 rc and stress relieved. Chambered in 5.56 NATO, 1-8 rh twist. Black claw flutes. Button rifled, 6 Grooves. .750 under gas block. 1/2-28 threads. Barrel is finis..
    AR-15 5.56/.223 WYLDE 18" MID BLACK WOLF UPPER ASSEMBLY / MLOKBarre...
    $299.95$499.95