6.5 Grendel

Find an exquisite selection of US made 6.5 Grendel Upper Assemblies. All Moriarti Arms ® upper receiver assemblies are fully-complete, function-tested, and ready to fire. It's best to use 6.5 Grendel Uppers with your standard 5.56 magazine.

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  • AR-15 16″ 6.5 Grendel Type II Tactical Upper Assembly
    Moriarti Armament's AR-15/M-16 16″ 6.5 Grendel Type II FULLY ASSEMBLED Upper Assembly includes:AR15 / M16 Enhanced Upper Receiver 16″ Contour Parkerized 6.5 Grendel (Type II) 4150 Chrome Moly Steel Barrel with 1:8 Twist and Carbine Gas.750 Low Profile Gas BlockCarbine L..
    Moriarti Armament's AR-15/M-16 16″ 6.5 Grendel Type II FULLY A...
    $249.95$449.95
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  • AR-15 6.5 GRENDEL 10" PREMIUM PISTOL UPPER / MLOK / TRIPORT
    AR-15 6.5 GRENDEL 10" PREMIUM PISTOL UPPER W/ SUPER SLIM RAIL is chambered in 6.5 Grendel caliber. It is larger and more powerful than the standard .223 Remington/5.56mm NATO rounds commonly used in AR-15 rifles. Features 10" barrel,  making the rifle easier to maneuver, especially in tigh..
    AR-15 6.5 GRENDEL 10" PREMIUM PISTOL UPPER W/ SUPER SLIM RAIL is ch...
    $249.95$429.95
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  • AR-15 6.5 GRENDEL 12" BARRETT STYLE PISTOL UPPER ASSEMBLY
    AR-15 6.5 GRENDEL 12" BARRETT STYLE PISTOL UPPER ASSEMBLYEvery Upper Build is Test Fired Before Shipment To Guarantee Performance. We do not guarantee cycling with all ammunition due to vast differences in the quality of ammunition. We will not warranty cycling with imported, steel cased or reloaded..
    AR-15 6.5 GRENDEL 12" BARRETT STYLE PISTOL UPPER ASSEMBLYEvery Uppe...
    $299.95$449.95
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  • AR-15 6.5 GRENDEL 12" PREMIUM PISTOL UPPER / 12" MLOK
    AR-15 6.5 GRENDEL 12" PREMIUM PISTOL UPPER W/ SUPER SLIM RAILEvery Upper Build is Test Fired Before Shipment To Guarantee Performance.  We will not warranty cycling with imported, steel cased or reloaded rounds.UPPER ASSEMBLY INCLUDES:BARREL: 12" 6.5 GRENDEL BARREL TYPE II, 1X8 TWIST, 4150 CMV,..
    AR-15 6.5 GRENDEL 12" PREMIUM PISTOL UPPER W/ SUPER SLIM RAILEvery ...
    $259.95$399.95
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  • AR-15 6.5 GRENDEL 12.5" BALLISTIC PREMIUM PISTOL UPPER / MLOK
    AR-15 6.5 GRENDEL 12.5" BALLISTIC PREMIUM PISTOL UPPEREvery Upper Build is Test Fired Before Shipment To Guarantee Performance. We do not guarantee cycling with all ammunition due to vast differences in the quality of ammunition. We will not warranty cycling with imported, steel cased or reloaded ro..
    AR-15 6.5 GRENDEL 12.5" BALLISTIC PREMIUM PISTOL UPPEREvery Upper B...
    $349.95$499.95
  • AR-15 6.5 GRENDEL 12.5" FAXON FIREARMS PREMIUM PISTOL UPPER
    AR-15 6.5 GRENDEL 12.5" FAXON FIREARMS PREMIUM PISTOL UPPEREvery Upper Build is Test Fired Before Shipment To Guarantee Performance. We do not guarantee cycling with all ammunition due to vast differences in the quality of ammunition. We will not warranty cycling with imported, steel cased or reload..
    AR-15 6.5 GRENDEL 12.5" FAXON FIREARMS PREMIUM PISTOL UPPEREvery Up...
    $499.95
  • AR-15 6.5 GRENDEL 14.5" PREMIUM UPPER HALF / SLIM MLOK
    AR-15 6.5 GRENDEL 14.5" PREMIUM PISTOL UPPER W/ SUPER SLIM RAIL FEATURES:BARREL: 14.5" 6.5 GRENDEL BARREL TYPE II, 1X8 TWIST, 4150 CMV, CARBINE GAS SYSTEM WITH STEEL LOW PROFILE GAS BLOCK, NITRIDE COATEDUPPER RECEIVER: AR15 A3 FLAT TOP, HARD COAT ANODIZED, DUST COVER AND FORWARD ASSIST INSTALLE..
    AR-15 6.5 GRENDEL 14.5" PREMIUM PISTOL UPPER W/ SUPER SLIM RAIL&nbs...
    $269.95$449.95
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  • AR-15 6.5 Grendel 16" diamond fluted stainless steel upper assembly
    AR-15 6.5 Grendel 16" diamond fluted stainless steel upper assembly This drop-in 6.5 Grendel Type 2 upper will attach to virtually any standard AR-15 lower assembly. Available in 416R Stainless Steel threaded barrels or 4150 Steel with 1 and 8" twist and  slim mlok..
    AR-15 6.5 Grendel 16" diamond fluted stainless steel upper assembly...
    $299.95$499.95
  • AR-15 6.5 Grendel 18" nitride upper assembly with slim mlok rail
    AR-15 6.5 Grendel 18" nitride upper assembly with slim mlok rail, This drop-in 6.5 Grendel Type 2 upper will attach to virtually any standard AR-15 lower assembly. Available in 4150 Steel Black Nitride Finish, with 1 and 8" twist and mid length slim mlok free float handguards.&nb..
    AR-15 6.5 Grendel 18" nitride upper assembly with slim mlok rail, T...
    $299.95$499.95
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  • AR-15 6.5 Grendel 18" straight fluted stainless upper assembly /Mlok
    Take your shooting game to another level with this well-designed 6.5 Grendel 18" straight fluted stainless upper assembly. The 18 inch stainless straight fluted barrel design not only adds aesthetic appeal, but also allows for better heat dispersion, making this a durable choice for even the mo..
    Take your shooting game to another level with this well-designed 6....
    $299.95$499.95
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  • AR-15 6.5 Grendel 20"  stainless fluted competition upper assembly
    AR-15 6.5 Grendel 20" stainless steel competition upper assembly. CURRENTLY AVAILABLE BARREL IN NITRIDE FINISH (BLACK)This drop-in 6.5 Grendel Type 2 upper will attach to virtually any standard AR-15 lower assembly. Available in 416R Stainless Steel threaded barrels with&nbs..
    AR-15 6.5 Grendel 20" stainless steel competition upper a...
    $399.95$599.95
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  • AR-15 6.5 Grendel 20" Black Wolf Competition Upper Assembly / Mlok
    AR-15 6.5 Grendel 20" Black Wolf Competition Bull Upper AssemblyThis drop-in upper will attach to virtually any standard Mil Spec AR-15 lower assembly. Works best with your standard 5.56 Mags. Moriarti's exclusive 416R Stainless Steel nitride coated straight fluted double tone Black Wolf b..
    AR-15 6.5 Grendel 20" Black Wolf Competition Bull Upper AssemblyThi...
    $449.95$599.95
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  • AR-15 6.5 Grendel 20" diamond fluted stainless steel upper assembly / 15" Mlok
    AR-15 6.5 Grendel 20" diamond stainless steel competition upper assembly, This drop-in 6.5 Grendel Type 2 upper will attach to virtually any standard AR-15 lower assembly. Available in 416R Stainless Steel threaded barrels with 1 and 8" twist and rifle le..
    AR-15 6.5 Grendel 20" diamond stainless steel compet...
    $399.95$599.95
  • AR-15 6.5 Grendel 20" spiral fluted stainless steel upper assembly / 15" slim mlok
    AR-15 6.5 Grendel 20" spiral fluted stainless steel upper assembly / 15" slim mlok. This drop-in 6.5 Grendel Type 2 upper will attach to virtually any standard AR-15 lower assembly.  Barrel - 20" 416 stainless steel hbar barrel, fluted. Spiral fluting. Hardened to 26-32 rc and stre..
    AR-15 6.5 Grendel 20" spiral fluted stainless steel upper assembly ...
    $389.95$499.95
  • AR-15 6.5 Grendel 20" stainless spiral fluted upper assembly /BCG and CH/Mlok
    AR-15 6.5 Grendel 20" stainless fluted upper assembly complete with BCG and CH Features:Barrel - 20" stainless fluted 416R heavy barrel. Chambered in 6.5 Grendel Type II. 1-8 rh twist. Button rifled. .750 under gas block. Spiral Fluted. M4 feedramps. 5/8x24 thread. Barrel is finished off with tripor..
    AR-15 6.5 Grendel 20" stainless fluted upper assembly complete with...
    $549.95$749.95
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  • AR-15 6.5 Grendel 20" stainless steel fluted competition upper assembly / Side Charger / Complete
    AR-15 6.5 Grendel 20" stainless steel fluted competition upper assembly / Side Charger / Complete. This drop-in upper will attach to virtually any standard AR-15 lower assembly. Available in 416R Stainless Steel threaded barrels, with 1 and 8" twist and rifle length Mlo..
    AR-15 6.5 Grendel 20" stainless steel fluted competition upper asse...
    $599.95$749.95
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  • AR-15 6.5 Grendel 22" Black Diamond Competition Bull Upper Assembly
    AR-15 6.5 Grendel 22" Black Diamond Competition Bull Upper Assembly. You inquired and we listened. For a limited time, black diamond fluted Grendel uppers are put together just for you. This drop-in upper will attach to virtually any standard Mil Spec AR-15 lower assembly. Works best with your ..
    AR-15 6.5 Grendel 22" Black Diamond Competition Bull Upper Assembly...
    $599.95
  • AR-15 6.5 Grendel 24" Competition Upper Assembly / Fluted / Mlok / Triport
    This is a true 6.5 Grendel Type 2 competition upper assembly with fluted barrel. All you need is a 6.5 BCG and some ammo to convert your AR-15 into the most desirable 6.5 Grendel. Works best with standard 5.56 magazines. California and NY compliant. AR-15 6.5 Grendel 24" competition upper assem..
    This is a true 6.5 Grendel Type 2 competition upper assembly with f...
    $349.95$499.95
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  • AR-15 6.5 Grendel 24" Stainless Steel Upper Assembly / Thread Protector / Mlok
    AR-15 6.5 Grendel 24" Stainless Steel Upper Assembly / Thread Protector / MlokThis drop-in 6.5 Grendel Type 2 upper will attach to virtually any standard AR-15 lower assembly. Available in 416R Stainless Steel threaded barrels with 1 and 8" twist and rifle length slim m..
    AR-15 6.5 Grendel 24" Stainless Steel Upper Assembly / Thread Prote...
    $399.95$649.95
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