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 Flash Can Upper Receiver Keymod 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 12.5" 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 with Aero Precision M5 Enhanced Combo Set, which i..
    AR-10 .308 12.5" Aero Precision Style Upper Receiver Assembly - per...
    $469.95
  • AR-10 .308 12.5" claw pistol keymod upper receiver assembly
    AR-10 .308 12.5" claw pistol keymod upper receiver 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 pist..
    AR-10 .308 12.5" claw pistol keymod upper receiver assembly fe...
    $449.95$599.95
  • 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 12.5" Socom style pistol Mlok upper receiver assembly - choose barrel length
    AR-10 .308 12.5" Socom style pistol keymod upper receiver assembly features:Barrel - 12.5" .308 carbine 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 you..
    AR-10 .308 12.5" Socom style pistol keymod upper receiver assembly&...
    $469.95$599.95
  • AR-10 .308 14.5" Aero Precision Style Upper Receiver Assembly
    AR-10 .308 14.5" 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 with Aero Precision M5 Enhanced Combo Skin Set, wh..
    AR-10 .308 14.5" Aero Precision Style Upper Receiver Assembly - per...
    $499.95
  • 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" Black Hole Weaponry stainless steel in black upper assembly with xtreme muzzle brake
    AR-10 .308 16" Black Hole Weaponry stainless steel in black upper assembly with xtreme muzzle brake includes:Barrel - Black Hole Weaponry (BHW) AR-10 .308 16” 1x11 caliber barrel with standard rifle profile, 416R stainless steel Caudle 3 land polygonal rifling in black shot finish. DPMS compatible.&..
    AR-10 .308 16" Black Hole Weaponry stainless steel in black upper a...
    $599.95$699.95
  • AR-10 .308 16" diamond fluted bull tactical upper assembly w/ slanted brake
    AR-10 .308 16" diamond fluted bull tactical upper assembly w/ slanted YHM brakeBarrel - 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. Diamond fluted. Barrel thread: 5/8x24. Barrel is finished of..
    AR-10 .308 16" diamond fluted bull tactical upper assembly w/ slant...
    $599.95$649.95
  • 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
  • AR-10 .308 18" Ballistic Advantage Stainless Steel Upper Receiver Assembly - DPMS Style
    AR-10 .308 18" Stainless Steel Upper Receiver Assembly Includes: ·         Assembled Upper Receiver ·         Enhanced Slim Keymod Rail ·         18" .308 Stainless Steel Barrel ·&nbs..
    AR-10 .308 18" Stainless Steel Upper Receiver Assembly Include...
    $499.99$615.00
  • AR-10 .308 18" CMV Aero Precision Style Upper Receiver Assembly
    AR-10 .308 18" Aero Precision Style Upper Receiver Assembly , These builds are made in house based on Aero Precision M5 Enhanced Upper and Rail Combo Sets. Please note, Aero Precision is a high profile DPMS platform. If you require low profile build, the look and feel of the upper is available HERE...
    AR-10 .308 18" Aero Precision Style Upper Receiver Assembly , These...
    $550.00$570.00
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  • AR-10 .308 18" SPR keymod upper assembly with BCG and CH
    AR-10 .308 18" SPR keymod upper assembly with BCG and CHBarrel Length: 18" Gas System: Mid Length Barrel Profile: A2 Barrel Steel: Chrome Moly Barrel Finish: Parkerized Chrome Lining: Yes Muzzle Thread: 5/8-24 Chamber: .308 WIN Twist Rate: 1/10 Barrel Extension: M4 Diameter at Gas Block: ...
    AR-10 .308 18" SPR keymod upper assembly with BCG and CHBarrel Leng...
    $499.99$699.95
  • AR-10 .308 18" stainless steel keymod diamond fluted midlength upper assembly
    Barrel - 18" 416 stainless steel bull contour barrel. Hardened to 26-32 rc and stress releived.  Chambered in .308 winchester. 1-10 rh twist button rifled. Diamond fluted. Barrel is finished off with Xtreme muzzle brake. A3  flat top upper receiver - made from solid billet 6000 series a..
    Barrel - 18" 416 stainless steel bull contour barrel. Hardened to 2...
    $649.95
  • AR-10 .308 20" Black Wolf Stainless Steel Upper Receiver Assembly
    Moriarti's Exclusive AR-10 .308 20" Black Wolf Stainless Steel Upper Receiver Assembly DPMS Compatible in Black Includes: ·         Assembled Upper Receiver in Black ·         Enhanced Slim Keymod Rail ·   ..
    Moriarti's Exclusive AR-10 .308 20" Black Wolf Stainless Steel...
    $549.99$699.95
  • AR-10 .308 20" CMV Enhanced Aero Precision Style Upper Assembly
    AR-10 .308 20" CMV Aero Precision Style Upper Receiver Assembly Includes: Assembled Upper ReceiverEnhanced Handguard20" .308 CMV BarrelLow Profile Gas Block and Rifle Length Gas TubeProduct comes assembledThis complete upper does not include BCG or Charging Handle. T..
    AR-10 .308 20" CMV Aero Precision Style Upper Receiver Assembly&nbs...
    $550.00$580.00
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  • AR-10 .308 20" stainless keymod upper assembly w/ BCG and CH
    AR-10 .308 20" stainless steel keymod upper assembly is your perfect choice for a lightweight AR-10 build. Comes assembled and features:Barrel - 20" 416 stainless steel SOCOM contour barrel. Hardened to 26-32 rc and stress relieved.  Chambered in .308 winchester. 1-10 rh twist button rifled. Th..
    AR-10 .308 20" stainless steel keymod upper assembly is your perfec...
    $499.95$599.95
  • AR-10 .308 20" stainless steel bull spiral fluted tactical upper assembly
    Barrel - 20" 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 upper receiver - made from solid billet 6000 series aluminum. Black hardcoat anodized. F..
    Barrel - 20" 416 stainless steel bull contour barrel. Hardened to 2...
    $599.95
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  • AR-10 .308 20" stainless steel diamond fluted bull modular upper assembly
    Barrel - 20" 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. Diamond fluted. A3 flat top upper receiver - made from solid billet 6000 series aluminum. Black hardcoat anodized. ..
    Barrel - 20" 416 stainless steel bull contour barrel. Hardened to 2...
    $649.95
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  • AR-10 .308 20" stainless steel keymod diamond fluted tactical upper assembly
    Barrel - 20" 416 stainless steel bull contour barrel. Hardened to 26-32 rc and stress releived.  Chambered in .308 winchester. 1-10 rh twist button rifled. Diamond fluted. Barrel is finished off with Xtreme muzzle brake. A3  flat top upper receiver - made from solid billet 6000 series a..
    Barrel - 20" 416 stainless steel bull contour barrel. Hardened to 2...
    $649.95
  • AR-10 .308 20" stainless steel straight fluted modular upper assembly
    AR-10 .308 20" stainless steel straight fluted modular upper assemblyBARREL - 20" 416 STAINLESS STEEL HBAR/HEAVY CONTOUR BARREL. HARDENED TO 26-32 RC AND STRESS RELIEVED.  CHAMBERED IN 308 WIN (ACCEPTS BOTH, 7.62X51 AND .308). 1-10 RH TWIST BUTTON RIFLED. THREADED 5/8-24 WITH X-T..
    AR-10 .308 20" stainless steel straight fluted modular upper assemb...
    $449.99$599.95
  • AR-10 .308 24" Black Hole Weaponry stainless steel in black upper assembly with xtreme muzzle brake
    AR-10 .308 24" Black Hole Weaponry stainless steel in black upper assembly with xtreme muzzle brake. This upper is DPMS compatible. Barrel - Black Hole Weaponry 24” AR .308 1x11* caliber barrel with standard rifle profile, 416R stainless steel Caudle 3 land polygonal rifling in black shot finis..
    AR-10 .308 24" Black Hole Weaponry stainless steel in black upper a...
    $699.95$749.95
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  • AR-10 .308 24" stainless nitride plated diamond bull upper assembly
    AR-10 .308 24" stainless nitride plated diamond bull upper assembly. This Upper is DPMS compatible.Barrel - 24" 416 stainless steel nitride plated bull contour barrel. Hardened to 26-32 rc and stress releived.  Chambered in .308 WIN. 1-10 rh twist button rifled. .936 diameter under gas block. T..
    AR-10 .308 24" stainless nitride plated diamond bull upper assembly...
    $699.95
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  • AR-10 .308 24" stainless steel black diamond tactical upper assembly
    AR-10 .308 24" stainless steel black diamond tactical upper assembly. Made exclusively for you by Moriarti Armaments. This upper is DPMS compatible. Barrel - 24" 416 stainless steel bull contour barrel. Hardened to 26-32 rc and stress relieved.  Black diamond with stainless flutes. Chamber..
    AR-10 .308 24" stainless steel black diamond tactical upper assembl...
    $799.95
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  • AR-10 .308 24" stainless steel bull modular upper assembly
    AR-10 .308 24" stainless steel bull modular upper assembly. CA and NY Compliant. Barrel - 24" 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. A3 flat top upper receiver - Made..
    AR-10 .308 24" stainless steel bull modular upper assembly. CA and ...
    $649.95
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  • AR-10 .308 24" stainless steel diamond fluted bull tactical upper assembly
    AR-10 .308 24" stainless steel diamond fluted bull tactical upper assembly. This Upper is DPMS compatible. Current ETA: 6 weeks from time of order.Barrel - 24" 416 stainless steel bull contour barrel. Hardened to 26-32 rc and stress relieved.  Chambered in .308 WIN. 1-10 rh twist button ri..
    AR-10 .308 24" stainless steel diamond fluted bull tactical up...
    $699.95
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  • AR-10 .308 24" stainless steel Socom straight fluted upper assembly
    AR-10 .308 24" stainless steel Socom straight fluted upper assembly. This upper is DPMS compatible. Choice of colors available on top of page. Weight: 6lb.Barrel - 24" 416R stainless steel Hbar barrel. Hardened to 26-32 rc and stress relieved.  Chambered in .308 winchester. 1-10 rh twist button..
    AR-10 .308 24" stainless steel Socom straight fluted upper assembly...
    $529.95$699.95
  • AR-10 .308/7.62 20" stainless steel hbar diamond fluted tactical upper assembly
    AR-10 .308/7.62 20" stainless steel hbar diamond fluted tactical upper assembly - made exclusively by Moriarti Armaments. Current ETA is 6 weeks from time of purchase.Barrel - 20" 416 stainless steel hbar/heavy contour barrel. Hardened to 26-32 rc and stress releived.  Chambered in .308 WIN. 1-..
    AR-10 .308/7.62 20" stainless steel hbar diamond fluted tactical up...
    $599.95$649.95
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  • AR-10 .308/7.62 24" stainless steel modular upper assembly with xtreme muzzle brake
    AR-10 .308 24" stainless steel modular upper assembly with xtreme muzzle brake. This upper is DPMS compatible.Barrel - 24" 416R stainless steel bull contour barrel. Hardened to 26-32 rc and stress releived.  Chambered in .308 winchester. 1-10 rh twist button rifled. Barrel is threaded with..
    AR-10 .308 24" stainless steel modular upper assembly with xtr...
    $689.95
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  • AR-10 .308/7.62x51 24" stainless steel spiral fluted tactical upper assembly
    AR-10 .308/7.62x51 24" stainless steel spiral fluted tactical upper assembly.  Current ETA: 6-8 weeks for delivery from time of order.Barrel - 24" 416 stainless steel bull contour barrel. Hardened to 26-32 rc and stress releived.  Chambered in 308 Win (accepts both, 308 and 7.62 rounds). 1..
    AR-10 .308/7.62x51 24" stainless steel spiral fluted tactical upper...
    $699.95