AR .308 Barreled Upper Assemblies

Moriarti Arms ® got exactly what you need to build a high quality .308 Upper Assembly at cheap prices. Ranging from .308 pistol builds to long range most sought after 24” AR .308 Diamond  Upper Assembly, Moriarti Armaments will provide the most exquisite look for your AR 10 .308 Rifle.

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  • AR-10 .308 10.5" pistol keymod upper assembly
    AR-10 .308 10.5" pistol keymod upper assembly is DPMS compatible. We can build these uppers to your desired specs.Features:Barrel - 10.5" .308 carbine length barrel, crafted to mil-spec standards from 4150 Chrome Moly Vanadium with a QPQ corrosion resistant finish. This barrel provides t..
    AR-10 .308 10.5" pistol keymod upper assembly is DPMS compatible. W...
    $449.95$599.95
  • AR-10 .308 12.5" Aero Precision Style Upper Receiver Assembly
    AR-10 .308 16" Aero Precision Style Upper Receiver Assembly - perfect precision, perfect fit. This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons. These uppers are custom made for you inhouse based on Aero Precision M5 Enhanced Combo Set, which..
    AR-10 .308 16" Aero Precision Style Upper Receiver Assembly - perfe...
    $469.95
  • AR-10 .308 12.5" precision pistol keymod upper assembly
    AR-10 .308 12.5" precision pistol keymod upper assembly features:Barrel - 12.5" .308 mid length barrel, crafted to mil-spec standards from 4150 Chrome Moly Vanadium with a QPQ corrosion resistant finish. This barrel provides time tested precision and accuracy for your .308 pistol build...
    AR-10 .308 12.5" precision pistol keymod upper assembly features:Ba...
    $449.95$599.95
  • AR-10 .308 16" Aero Precision Style Upper Receiver Assembly
    AR-10 .308 16" Aero Precision Style Upper Receiver Assembly - perfect precision, perfect fit.Includes: ·         Assembled Upper Receiver ·         Enhanced Handguard ·         16" .308 CMV B..
    AR-10 .308 16" Aero Precision Style Upper Receiver Assembly - perfe...
    $529.95$560.00
  • AR-10 .308 16" stainless steel bull spiral tactical upper assembly
    AR-10 .308 16" stainless steel bull spiral tactical upper assembly. NY and CA compliant.Barrel - 16" 416 stainless steel bull contour barrel. Hardened to 26-32 rc and stress releived.  Chambered in .308 winchester. 1-10 rh twist button rifled. Target crowned. Spiral fluted. A3 flat top ..
    AR-10 .308 16" stainless steel bull spiral tactical upper assembly....
    $599.95
  • AR-10 .308 16" stainless steel modular straight fluted  upper assembly
    Barrel - 16" 416 stainless steel straight fluted hbar contour barrel. Hardened to 26-32 rc and stress releived.  Chambered in .308 winchester. 1-10 rh twist button rifled. Threaded 5/8-24 at the muzzle end with our stainless steel x-treme muzzle brake. A3 flat top upper receiver - made ..
    Barrel - 16" 416 stainless steel straight fluted hbar contour barre...
    $449.99$549.95