Upper Assemblies

Moriarti tends to test fire every custom AR-15 upper assembly to verify cycling. We do not guarantee cycling with all ammunition due to vast differences in the quality of ammunition. We will only warranty cycling with the U.S. made ammunition. We will not warranty cycling with imported, steel cased or reloaded rounds. 

Sort By:
Show:
Display: text_list text_grid
  • AR 7.62X39 16" CARBINE LENGTH 1:10 TWIST W/ 10" M-LOK HANDGUARD UPPER
    AR 7.62X39 16" CARBINE LENGTH 1:10 TWIST W/ 10" M-LOK HANDGUARD UPPER. AR-47 are compatible with your standard mil-spec AR-15 lower receivers.  Barrel Length: 16"Gas System: CarbineBarrel Steel: 4150V Chrome Moly VanadiumBarrel Finish: PhosphateMuzzle Thread: 5/8-24Chamber: 7.62x39Twist Rate..
    AR 7.62X39 16" CARBINE LENGTH 1:10 TWIST W/ 10" M-LOK HANDGUARD UPP...
    $269.95$399.95
  • AR 7.62X39 16" CARBINE LENGTH 1:10 TWIST W/ 15" M-LOK HANDGUARD UPPER
    AR 7.62X39 16" CARBINE LENGTH 1:10 TWIST W/ 15" M-LOK HANDGUARD UPPER. AR-47 are compatible with your standard mil-spec AR-15 lower receivers.  Barrel Length: 16"Gas System: CarbineBarrel Steel: 4150V Chrome Moly VanadiumBarrel Finish: PhosphateMuzzle Thread: 5/8-24Chamber: 7.62x39Twist Rate..
    AR 7.62X39 16" CARBINE LENGTH 1:10 TWIST W/ 15" M-LOK HANDGUARD UPP...
    $279.95$399.95
    text_reviews
  • AR 7.62X39 18" MID LENGTH 1:10 TWIST / 15" M-LOK / UPPER RECEIVER
    AR 7.62X39 18" MID LENGTH 1:10 TWIST W/ 15" M-LOK HANDGUARD UPPER. AR-47 are compatible with your standard mil-spec AR-15 lower receivers.  Barrel Length: 18"Gas System: MidBarrel Steel: 4150V Chrome Moly VanadiumBarrel Finish: Nitride CoatedMuzzle Thread: 5/8-24Chamber: 7.62x39Twist Rate: 1..
    AR 7.62X39 18" MID LENGTH 1:10 TWIST W/ 15" M-LOK HANDGUARD UPPER. ...
    $399.95
  • 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
    text_reviews
  • AR-15 .223 Wylde 24" CMV Fluted Tactical Bull Upper Assembly, Left Handed Side Charger
    AR-15 .223 Wylde CMV Fluted Tactical Bull Upper Assembly, Left Handed Side Charger.  CA and NY compliant.Barrel - 24" 4150 CMV heavy barrel, fluted. Heat Treated to RC 28-32 Hardness, and Stress Relieved.  Black nitride finish. Chambered in .223 Wylde, accepts both 5.56 and .223 ..
    AR-15 .223 Wylde CMV Fluted Tactical Bull Upper Assembly, Left Hand...
    $549.95$649.95
    text_reviews
  • AR-15 .223 Wylde 24" Tactical Bull Upper Assembly/Side Charger/BCG
    AR-15 .223 Wylde 24" Tactical Bull Upper Assembly, Side Charger.  For those who frequently fire from use of bipod, opting for a side-charging AR-15 can greatly enhance their shooting experience. This particular modification proves to be easier to operate as it solely requires the use of th..
    AR-15 .223 Wylde 24" Tactical Bull Upper Assembly, Side Charger.&nb...
    $399.95$549.95
    text_reviews
  • AR-15 .223/5.56 16" Black Wolf stainless steel upper assembly / Walking dead / Left handed side charger
    AR-15 .223/5.56 16" "Black Wolf" stainless steel upper assembly / Walking dead / Left handed side charger. This upper is build on left hand side charging upper receiver. Comes complete with BCG and CH.Barrel - 16" 416 stainless steel hbar barrel, stainless steel, nitride coated, stainless steel stra..
    AR-15 .223/5.56 16" "Black Wolf" stainless steel upper assembly / W...
    $499.95$699.95
  • AR-15 .224 Valkyrie 20″ Diamond Stainless Steel Upper Assembly / Mlok
    The Moriarti Armaments AR-15 .224 Valkyrie 20″ fluted stainless steel upper assembly comes complete with a MATCH GRADE Stainless Steel 416R Barrel, low profile Steel .750 Gas Block with Nitride Finish and a Stainless Steel Gas tube. Upper is finished off with a 15" rifle length Mlok Free F..
    The Moriarti Armaments AR-15 .224 Valkyrie 20″ fluted stainles...
    $399.95$599.95
  • AR-15 .224 Valkyrie 20″ nitride upper assembly / Mlok
    The Moriarti Armaments AR-15 .224 Valkyrie 20″ nitride upper assembly / Mlok comes complete with a 20" 416R steel barrel, low profile Steel .750 Gas Block with Nitride Finish and a Stainless Steel rifle Length Gas tube. Upper is finished off with a Free Float Slim Line Mlok handguard...
    The Moriarti Armaments AR-15 .224 Valkyrie 20″ nitride upper a...
    $499.95
  • AR-15 .224 Valkyrie 20″ Spiral Stainless Steel Upper Assembly / Mlok
    The Moriarti Armaments AR-15 .224 Valkyrie 20″ spiral fluted stainless steel upper assembly comes complete with a MATCH GRADE Stainless Steel 416R Barrel, low profile Steel .750 Gas Block with Nitride Finish and a Stainless Steel Gas tube. Upper is finished off with a 15" rifle length..
    The Moriarti Armaments AR-15 .224 Valkyrie 20″ spiral flu...
    $399.95$599.95
  • AR-15 .224 Valkyrie 20″ stainless steel upper assembly / 15" Mlok
    The Moriarti Armaments AR-15 .224 Valkyrie 20″ stainless steel upper assembly comes complete with a MATCH GRADE Stainless Steel 416R Barrel, low profile Steel .750 Gas Block with Nitride Finish and a Stainless Steel Gas tube. Upper is finished off with 15" Free Float Ultra Slim Line MLOK w..
    The Moriarti Armaments AR-15 .224 Valkyrie 20″ stainless steel...
    $349.95$649.95
    text_reviews
  • AR-15 .224 Valkyrie 20″ straight fluted stainless steel upper assembly / Mlok
    AR-15 .224 Valkyrie 20″ straight fluted stainless steel upper assembly / Mlok comes complete with a MATCH GRADE Stainless Steel 416R Barrel, low profile Steel .750 Gas Block with Nitride Finish and a Stainless Steel Gas tube. Upper is finished off with a rifle length Free Float Mlok and tr..
    AR-15 .224 Valkyrie 20″ straight fluted stainless steel upper assem...
    $499.95
  • AR-15 .300 BLK 16" PISTOL LENGTH UPPER ASSEMBLY / 1:7 / 12" MLOK / TRIPORT
    With a 16 inch nitride barrel chambered in 300 blackout, this AR15 upper receiver assembly is readily attachable to any Mil-Spec lower receiver. The upper receiver is forged in the M4 flat top design, facilitating easy attachment of rifle scopes and red dot sights to the picatinny rail. A Moriarti t..
    With a 16 inch nitride barrel chambered in 300 blackout, this AR15 ...
    $279.95$399.95
  • AR-15 .300 BLK 16" PISTOL UPPER ASSEMBLY /15" MLOK / CERAKOTE & CHOOSE
    AR-15 .300 BLK 16" PISTOL LENGTH 1:8 TWIST / 15" MLOK / CERAKOTE & CHOOSE COLOR ON TOP OF PAGE. This drop-in 300 Blackout upper will attach to virtually any standard AR-15 lower assembly. Includes:Barrel - 16" 4150 CMV, 1x8 twist, pistol length gas system. Phosphate finish. Chambered in 300..
    AR-15 .300 BLK 16" PISTOL LENGTH 1:8 TWIST / 15" MLOK / CERAKOTE &a...
    $289.95$449.95
  • AR-15 .350 Legend  16" Stainless Steel Fluted Upper Assembly / Mlok
    AR-15 .350 Legend  16" Stainless Steel Fluted Upper Assembly / Mlok. - Current variation of barrel flute - straight or spiral, depending on stock availability. Images may not be an exact representation of the product. Length16"ProfileHeavy BarrelTwist1:16FinishStainlessMaterial416R Stai..
    AR-15 .350 Legend  16" Stainless Steel Fluted Upper Assembl...
    $449.95$599.95
  • AR-15 .350 Legend  20" Stainless Steel Tactical Upper Assembly / Mlok
    AR-15 .350 Legend  20" Stainless Steel Tactical Upper Assembly / Mlok - If you're seeking unrivaled performance, look no further than Moriarti Armaments' 350 Legend Upper. This high-quality firearm accessory is the key to unlocking a powerful and precise shooting experience, thanks to i..
    AR-15 .350 Legend  20" Stainless Steel Tactical Upper Assem...
    $299.95$499.95
    text_reviews
  • AR-15 .350 Legend 10.5" Mlok Tactical Upper Assembly
    AR-15 350 Legend 10.5" Mlok Tactical Upper Assembly - Upgrade your standard AR-15 platform to the new 350 Legend cartridge, providing a significant boost in velocity and energy without requiring the purchase of a specialty bolt. Ideal for those seeking a straight wall cartridge hunting experien..
    AR-15 350 Legend 10.5" Mlok Tactical Upper Assembly - Upgrade ...
    $259.95$499.95
    text_reviews
  • AR-15 .350 Legend 12.5" Tactical Upper Assembly / MLOK
    AR-15 .350 Legend 12.5" Mlok Tactical Upper Assembly - The new 350 Legend is an upgrade to your standard AR-15 platform in pistol length. 350 offers a significant increase in velocity and energy without having to buy a specialty bolt. Supercharge your AR-15 in one easy step!Features:Barrel Length: 1..
    AR-15 .350 Legend 12.5" Mlok Tactical Upper Assembly - The new 350 ...
    $269.95$499.95
    text_reviews
  • AR-15 .350 Legend 16" M4 MLOK Upper Assembly | Side Charging Receiver
    AR-15 .350 Legend 16" M4 MLOK Upper Assembly | Side Charging ReceiverBarrel - 16" packerized 4150 CMV. M4 profile. Chambered in 350 legend. 1-16 rh twist. .750 diameter under gas block. M4 feedramps. 5/8x24 thread. Barrel is finished off with flash hider. A3  flat top upper receive..
    AR-15 .350 Legend 16" M4 MLOK Upper Assembly | Side Charging Receiv...
    $399.95$499.95
  • AR-15 .450 Bushmaster 10.5" Pistol Upper Assembly / Flash Can
    AR-15 .450 Bushmaster 10.5" Pistol Upper Assembly -  this is a custom made to order upper assembly. Just add this .450 Pistol Flattop Upper to your AR15 Pistol Lower Receiver, and you are ready for the range. This assembly includes 10.5" heavy profile .450 Bushmaster barrel with slim 12" f..
    AR-15 .450 Bushmaster 10.5" Pistol Upper Assembly -  this...
    $299.95$499.95
  • AR-15 .450 Bushmaster 10.5" Thumper Pistol Upper Assembly / Mlok
    AR-15 .450 Bushmaster 10.5" "Thumper" Pistol Upper Assembly -  upgrade your AR. Just add this .450 Pistol Flattop Upper to your AR15 Pistol Lower Receiver, and you are ready for the range. This assembly includes 10" heavy profile .450 Bushmaster barrel with slim 10" free-float handguard, a..
    AR-15 .450 Bushmaster 10.5" "Thumper" Pistol Upper Assembly - ...
    $299.95$499.95
  • AR-15 .450 Bushmaster 12.5" Pistol Upper Assembly / Tanker
    AR-15 .450 Bushmaster 12.5" Pistol Upper Assembly / Tanker -  Just add this .450 Pistol Flattop Upper to your AR15 Pistol Lower Receiver, and you are ready for the range. This assembly includes 12.5" heavy profile .450 Bushmaster barrel with slim 12" slim Mlok free-float handguard. ..
    AR-15 .450 Bushmaster 12.5" Pistol Upper Assembly / Tanker -&n...
    $299.95$499.95
  • AR-15 .450 Bushmaster 12.5" Upper Build / 12" Slim Rail / Shroud
    AR-15 .458 Socom 12.5" Upper Build W/ 12" Slim Rail / 3" ShroudFeatures:Barrel Length: 12.5" Melonite Barrel Gas System: Carbine Barrel Profile: Heavy Barrel Steel: 41V50 Barrel Finish: Nitride coated Muzzle Thread: 5/8x24 Twist Rate: 1/24 Diameter at Gas Block: .875 Gas Block Type: Ste..
    AR-15 .458 Socom 12.5" Upper Build W/ 12" Slim Rail / 3" ShroudFeat...
    $329.95$499.95
  • AR-15 .450 Bushmaster 16" Steel Black Nitride Upper Assembly / Tanker
    AR-15 .450 Bushmaster 16" steel black nitride upper assembly, This drop-in .450 Bushmaster upper will attach to virtually any milspec AR-15 lower assembly. Available in 4150 Steel Black Nitride Finish, with 1 and 24" twist and 12" Moriarti midlength slim mlok.  Barrel&nbs..
    AR-15 .450 Bushmaster 16" steel black nitride upper assembly, This ...
    $299.95$499.95
    text_reviews
  • AR-15 .450 Bushmaster 18" 4150 CMV Upper Assembly / Midlength / Mlok
    AR-15 .450 Bushmaster 18" 4150 CMV Upper Assembly / Midlength / MlokThis drop-in .450 Bushmaster upper will attach to virtually any milspec AR-15 lower. Make sure to enhance your lower with 4.3 heavy buffer for maximum performance of this big cal firearm. Barrel - 18" 4150 CMV barrel, n..
    AR-15 .450 Bushmaster 18" 4150 CMV Upper Assembly / Midlength / Mlo...
    $299.95$449.95
    text_reviews
  • AR-15 .450 Bushmaster 18" Steel Black Nitride Upper Assembly / Mlok
    AR-15 .450 Bushmaster 18" steel black nitride upper assembly, This drop-in .450 Bushmaster upper features 4150 Steel Black Nitride Finish, with 1 and 24" twist and 15" rifle length slim Mlok free float handguards.  Barrel - 18" 4150CMV steel black nitride hbar barrel..
    AR-15 .450 Bushmaster 18" steel black nitride upper assembly, This ...
    $329.95$499.95
    text_reviews
  • AR-15 .450 Bushmaster 7.5" Pistol Upper Assembly / Mlok Free Float
    AR-15 .450 Bushmaster 7.5" Pistol Upper Assembly / Mlok Free Float - Just add this .450 Pistol Flattop Upper to your AR15 Pistol Lower Receiver, and you are ready for the range. This assembly includes 7" heavy profile .450 Bushmaster barrel with slim 7" free-float handguard, available in y..
    AR-15 .450 Bushmaster 7.5" Pistol Upper Assembly / Mlok Free Float&...
    $299.95$499.95
    text_reviews
  • AR-15 .458 Socom 10.5" pistol upper assembly / 10" Mlok / Linear Comp
    AR-15 .458 Socom 10.5" pistol upper assembly w/ 10" free float rail Barrel - 10.5" 4150CMV steel barrel, single feedramps, non-fluted. Parkerized finish. Chambered in .458 Socom. Button rifled with 1-14 rh twist. .875 under gas block diameter. Threaded 5/8x24.  Carbine gas system. ..
    AR-15 .458 Socom 10.5" pistol upper assembly w/ 10" free float...
    $349.95$549.95
    text_reviews
  • AR-15 .458 Socom 12.5" Upper Assembly / 12" Mlok / Tanker
    AR-15 .458 Socom 12.5" Upper Assembly / 12" Mlok / TankerFeatures:Barrel Length: 12.5" .458 Melonite Barrel Gas System: Carbine Barrel Profile: Heavy Barrel Steel: 41V50 Barrel Finish: Nitride coated Muzzle Thread: 5/8x24 Twist Rate: 1/14 Barrel Extension: Socom Extension Diameter at Ga..
    AR-15 .458 Socom 12.5" Upper Assembly / 12" Mlok / TankerFeatures:B...
    $329.95$549.95
  • AR-15 .458 Socom 13" Upper Assembly / 12" Mlok / 3" Fake Can
    AR-15 .458 Socom 13" Upper Build W/ 12" Slim Rail / 3" Fake CanFeatures:Barrel Length: 13" .458 Melonite Barrel Gas System: Carbine Barrel Profile: Heavy Barrel Steel: 41V50 Barrel Finish: Nitride coated Muzzle Thread: 5/8x24 Twist Rate: 1/14 Barrel Extension: Socom Extension Diameter a..
    AR-15 .458 Socom 13" Upper Build W/ 12" Slim Rail / 3" Fake CanFeat...
    $329.95$549.95
  • AR-15 .458 Socom 16" black upper assembly / 15" Mlok / Linear Comp
    AR-15 .458 Socom 16" black upper assembly w/ 12" Mlok rail Barrel - 16" 4150 CMV, single feedramps, non-fluted. Parkerized finish. Chambered in .458 Socom. Button rifled with 1-14 rh twist. .875 under gas block diameter. Threaded 5/8x32.  Carbine gas system. Barrel is finished off by li..
    AR-15 .458 Socom 16" black upper assembly w/ 12" Mlok rail Barre...
    $299.95$529.95
    text_reviews
  • AR-15 .458 Socom 18" 4150 CMV Upper Assembly / 15" Mlok
    AR-15 .458 Socom 18" 4150 CMV Upper Assembly / 15" Mlok  . This upper assembly is compatible with .458 Socom cartridges, making it suitable for big game hunting and tactical shooting. It is made from 4150 Chromoly Vanadium (CMV), a high strength steel that offers increased strength, c..
    AR-15 .458 Socom 18" 4150 CMV Upper Assembly / 15" Mlok  ...
    $299.95$449.95
  • AR-15 .50 Beowulf 10.5" Upper Build W/ 10" Slim Rail and Custom Brake
    AR-15 .50 Beowulf 10.5" Upper Build W/ 10" Slim Rail and Custom Brake. Uppers use 6.5 Grendel Type 2 BCG.Features:Barrel Length: 10.5" 12.7x42 Cal, Custom Made Gas System: Carbine Barrel Profile: Heavy Barrel Steel: 416CMV Barrel Finish: Parkerized Muzzle Thread: 5/8x24 Twist Rate: 1/20 ..
    AR-15 .50 Beowulf 10.5" Upper Build W/ 10" Slim Rail and Custom Bra...
    $399.95$599.95
  • AR-15 .50 Beowulf 12.5" Upper Build W/ 12" Slim Rail / Classic
    AR-15 .50 Beowulf 12.5" Upper Build W/ 12" Slim Rail / Classic. Uppers use 6.5 Grendel Type 2 BCG.Features:Barrel Length: 12.5" 12.7x42 Cal, Custom Made Gas System: Carbine Barrel Profile: Heavy Barrel Steel: 416CMV Barrel Finish: Parkerized Muzzle Thread: 49/64x20 Twist Rate: 1/20 Barre..
    AR-15 .50 Beowulf 12.5" Upper Build W/ 12" Slim Rail / Classic. Upp...
    $349.95$549.95
  • AR-15 .50 Beowulf 12.5" Upper Build W/ 12" Slim Rail and Custom Brake
    AR-15 .50 Beowulf 12.5" Upper Build W/ 12" Slim Rail and Custom Brake. Uppers use 6.5 Grendel Type 2 BCG.Features:Barrel Length: 12.5" 12.7x42 Cal, Custom Made Gas System: Carbine Barrel Profile: Heavy Barrel Steel: 416CMV Barrel Finish: Parkerized Muzzle Thread: 5/8x24 Twist Rate: 1/20 ..
    AR-15 .50 Beowulf 12.5" Upper Build W/ 12" Slim Rail and Custom Bra...
    $399.95$599.95
  • AR-15 .50 BEOWULF 12.7x42 18" Parkerized Upper Assembly / 15" Mlok
    AR-15 .50 BEOWULF 12.7x42 18" Parkerized Upper Assembly / 15" Mlok.  This AR-15 12.7x42 rifle length upper has an 18" parkerized heavy barrel, and features a 1:20 twist rate, with a mid-length gas system. It includes a 15" MLOK Rail, an M4 flat-top forged upper receiver and compatible..
    AR-15 .50 BEOWULF 12.7x42 18" Parkerized Upper Assembly / 15" Mlok....
    $299.95$549.95
  • AR-15 .50 Beowulf 16" Upper Build W/ 15" Slim Mlok Rail and Custom Brake
    AR-15 .50 Beowulf 16" Upper Build W/ 15" Slim Rail and Custom Brake. Upper does not come with BCG and CH, can be purchased separately.Features:Barrel Length: 16" 12.7x42 Cal Gas System: Carbine Barrel Profile: Heavy Barrel Steel: 416CMV Barrel Finish: Parkerized Muzzle Thread: 49/64 x 20 ..
    AR-15 .50 Beowulf 16" Upper Build W/ 15" Slim Rail and Custom Brake...
    $399.95$529.95
    text_reviews
  • AR-15 12.7x42 7.5" Pistol Upper Assembly / Mlok Free Float
    AR-15 12.7x42 7.5" Pistol Upper Assembly / Mlok Free Float - This assembly includes 7" heavy profile 12.7x42 barrel with slim 7" free-float handguard, available in your choice in mlok. Barrel is finished off with nitride linear compensator. Barrel - 7.5" 4150CMV steel black nitride medi..
    AR-15 12.7x42 7.5" Pistol Upper Assembly / Mlok Free Float - T...
    $299.95$499.95
  • AR-15 12″ 6MM ARC Faxon Gunner Upper Assembly / Mlok
    The Moriarti Armaments AR-15 12″ 6MM ARC Match Grade Gunner  Upper Assembly / Mlok comes complete with a MATCH GRADE Stainless Steel 416R nitride coated Barrel, low profile Steel .750  gas block and a Stainless Steel carbine Gas tube. Upper is finished off with a Slim Free F..
    The Moriarti Armaments AR-15 12″ 6MM ARC Match Grade Gunner&nb...
    $449.95$699.95
    text_reviews
  • AR-15 16" 300 AAC BLACKOUT  BARRETT STYLE 15" LIGHTWEIGHT UPPER / FDE
    AR-15 16" 300AAC BLK  BARRETT STYLE 15" LIGHTWEIGHT FDE UPPER. WE NOW MAKE THIS ITEM WITH MLOK RAIL.  Barrel Length: 16"Gas System: PistolBarrel Steel: 4150V Chrome Moly VanadiumBarrel Finish: NitrideMuzzle Thread: 5/8-24Chamber: 300 BlackoutTwist Rate: 1 in 7"Barrel Extension: M4Diamet..
    AR-15 16" 300AAC BLK  BARRETT STYLE 15" LIGHTWEIGHT FDE UPPER....
    $289.95$399.95
    text_reviews
  • AR-15 16" 300 AAC BLACKOUT BARRETT STYLE 15" LIGHTWEIGHT MLOK UPPER
    AR-15 16" 300 AAC BLACKOUT PISTOL LENGTH 1/8 NITRIDE 15" LIGHTWEIGHT KEYMOD UPPER. 300 blackout caliber uppers use your standard .223/5.56 bolt carrier group and magazines. No special bolts or magazines to buy to get into a new caliber! Just drop an upper on your standard mil-spec AR-15 lower, and y..
    AR-15 16" 300 AAC BLACKOUT PISTOL LENGTH 1/8 NITRIDE 15" LIGHTWEIGH...
    $279.95$399.95
    text_reviews
  • AR-15 16" 5.56/.223 BARRETT STYLE LIGHTWEIGHT UPPER ASSEMBLY / 15" MLOK
    AR-15 16" 5.56/.223 BARRETT STYLE LIGHTWEIGHT UPPER ASSEMBLY / 15" MLOK FEATURES: Barrel Steel: 4150V Chrome Moly VanadiumBarrel Finish: NitrideMuzzle Thread: 1/2X28Chamber: 5.56 NATO (shoots both, 5.56 NATO and .223 Rem)Twist Rate: 1 in 7"Barrel Extension: M4Diameter at Gas Block: .750"Gas Blo..
    AR-15 16" 5.56/.223 BARRETT STYLE LIGHTWEIGHT UPPER ASSEMBLY / 15" ...
    $279.95$399.95
  • AR-15 16" 7.62x39 15" LIGHTWEIGHT BLUE UPPER W/TRIPORT MUZZLE BRAKE
    AR-15 16" 7.62x39 15" LIGHTWEIGHT BLUE UPPER W/TRIPORT MUZZLE BRAKE. AR-47 are compatible with your standard mil-spec AR-15 lower receivers.  Barrel Length: 16"Gas System: CarbineBarrel Steel: 4150V Chrome Moly VanadiumBarrel Finish: PhosphateMuzzle Thread: 5/8-24Chamber: 7.62x39Twist Rate: ..
    AR-15 16" 7.62x39 15" LIGHTWEIGHT BLUE UPPER W/TRIPORT MUZZLE BRAKE...
    $299.95$399.95
    text_reviews
  • AR-15 16" 7.62x39 BARRETT STYLE 15" LIGHTWEIGHT FDE UPPER
    AR-15 16" 7.62x39 BARRETT 15" LIGHTWEIGHT FDE UPPER. AR-47 are compatible with your standard mil-spec AR-15 lower receivers.  Barrel Length: 16"Gas System: CarbineBarrel Steel: 4150V Chrome Moly VanadiumBarrel Finish: PhosphateMuzzle Thread: 5/8-24Chamber: 7.62x39Twist Rate: 1 in 10"Barrel E..
    AR-15 16" 7.62x39 BARRETT 15" LIGHTWEIGHT FDE UPPER. AR-47 are comp...
    $299.95$399.95
    text_reviews
  • AR-15 18″ 6MM ARC Stainless Upper Assembly / Rocket Man / Mlok
    The Moriarti Armaments AR-15 AR-15 18″ 6MM ARC Match Grade Stainless Upper Assembly / Rocket Man comes complete with a MATCH GRADE Stainless Steel 416R Barrel, low profile steel .750  steel gas block and a Stainless Steel X-Large Gas tube. Upper is finished off with a Free F..
    The Moriarti Armaments AR-15 AR-15 18″ 6MM ARC Match Grad...
    $599.95$699.95
  • AR-15 21″ 6MM ARC Match Grade Stainless Nitride Upper Assembly / Nitride Finish / Rocket Man
    The Moriarti Armaments AR-15 21″ 6MM ARC Match Grade Stainless Nitride Upper Assembly / Nitride Finish / Rocket Man comes complete with a MATCH GRADE Stainless Steel 416R Barrel with Nitride QPQ finish from Odin Works, low profile Steel .875  steel gas block and a Stainless Steel..
    The Moriarti Armaments AR-15 21″ 6MM ARC Match Grade Stainless...
    $549.95$699.95
  • AR-15 21″ 6MM ARC Match Grade Stainless Steel HBAR Upper Assembly
    The Moriarti Armaments AR-15 21″ 6MM ARC Match Grade Stainless Steel HBAR Upper Assembly comes complete with a MATCH GRADE Stainless Steel 416R Barrel, low profile Steel .875 Gas Block with Nitride Finish and a Stainless Steel Gas tube. Upper is finished off with a Free Float MLOK Handguar..
    The Moriarti Armaments AR-15 21″ 6MM ARC Match Grade Stainless...
    $499.95$699.95
  • AR-15 300 AAC 16" MLOK UPPER ASSEMBLY / SLIP OVER BARREL SHROUD
    AR-15 300 BLACKOUT 16" MLOK UPPER ASSEMBLY WITH SLIP OVER BARREL SHROUD CA and NY compliant.Action: Semi-autoGas System: Pistol Length Gas SystemChamber: 300 AACTwist Rate: 1/7, button rifledMuzzle Device: Slip over barrel shroud with multi port muzzle brake, 5/8X24Barrel: 16"..
    AR-15 300 BLACKOUT 16" MLOK UPPER ASSEMBLY WITH SLIP OVER BARREL SH...
    $259.95$399.95
    text_reviews
  • AR-15 300 AAC blackout 10.5" nitride classic mlok upper assembly / A2
    AR-15 300 AAC blackout 10.5" classic mlok upper assembly is a perfect addition to your AR pistol. No other modifications to your AR-15 is required. Uses standard AR-15 BCG. All you need is 300 BLK ammo and this upper - and you have a new AR. The 10.5" 300 BLK upper includes:Barrel - 10.5" med profil..
    AR-15 300 AAC blackout 10.5" classic mlok upper assembly is a perfe...
    $249.95$399.95
    text_reviews
  • AR-15 300 AAC Blackout 10.5" pistol upper assembly / Flash Cone / Mlok
    AR-15 300 AAC blackout 10.5"  pistol upper assembly with flash coneBARREL - 10.5" 4150V NITRIDE COATED MED CONTOUR BARREL. HARDENED TO 26-32 RC AND STRESS RELIEVED.  CHAMBERED IN 300 BLACKOUT. 1/7 RH TWIST.  PISTOL GAS SYSTEM .750 UNDER GAS BLOCK. 5/8X24 THREAD. BARREL IS FINISHE..
    AR-15 300 AAC blackout 10.5"  pistol upper assembly with flash...
    $289.95$399.95
    text_reviews
  • AR-15 300 AAC blackout 16" pistol length upper assembly / 15" Mlok / Tri
    AR-15 300 AAC blackout 16" pistol length upper assembly w/ 15" Mlok is a perfect addition to your AR pistol. No other modifications to your AR-15 is required. Uses standard AR-15 BCG. All you need is 300 BLK ammo and this upper - and you have a new AR. Barrel - 16" med profile 4150 CMV, ni..
    AR-15 300 AAC blackout 16" pistol length upper assembly w/ 15" Mlok...
    $289.95$399.95
    text_reviews
  • AR-15 300 AAC Blackout 16" Stainless Black Wolf Upper Assembly / Mlok
    AR-15 300 AAC Blackout 16" Stainless Black Wolf Upper Assembly / Mlok. 300 blackout caliber uppers use your standard .223/5.56 bolt carrier group and magazines. No special bolts or magazines to buy to get into a new caliber.  Barrel - 16" 416 stainless steel hbar contour barrel. Hardened ..
    AR-15 300 AAC Blackout 16" Stainless Black Wolf Upper Assembly / Ml...
    $299.95$429.95
    text_reviews
  • AR-15 300 AAC blackout 16" stainless steel black diamond upper assembly
    AR-15 300 AAC blackout 16" stainless steel black diamond fluted upper assembly. 300 blackout caliber uppers use your standard .223/5.56 bolt carrier group and magazines! No special bolts or magazines to buy to get into a new caliber.    Barrel - 16" 416 stainless steel hbar contou..
    AR-15 300 AAC blackout 16" stainless steel black diamond fluted upp...
    $349.95$549.95
  • AR-15 300 AAC BLACKOUT 16" STAINLESS STEEL DIAMOND FLUTED UPPER ASSEMBLY
    AR-15 300 AAC 16" BLACKOUT STAINLESS STEEL DIAMOND FLUTED UPPER ASSEMBLY, 300 blackout caliber uppers use your standard .223/5.56 bolt carrier group and magazines! No special bolts or magazines needed to get into a new caliber!Barrel - 16" 416 stainless steel h-bar contour barrel. Hardened to 2..
    AR-15 300 AAC 16" BLACKOUT STAINLESS STEEL DIAMOND FLUTED UPPER ASS...
    $299.95$549.95
  • AR-15 300 AAC Blackout 16" stainless steel spiral fluted tactical upper assembly /Mlok
    AR-15 300 AAC Blackout 16" stainless steel spiral fluted tactical upper assembly. 300 Blackout chamber uses AR-15/M16 BCG and standard AR-15 mags. Features include:1. 300 Blackout Chamber: A special chamber that utilizes the versatile .300 Blackout rounds. This cartridge provides a wide va..
    AR-15 300 AAC Blackout 16" stainless steel spiral fluted tacti...
    $299.95$499.95
  • AR-15 300 AAC blackout 16" stainless straight fluted tactical upper assembly / Mlok
    AR-15 300 AAC blackout 16" stainless steel straight fluted tactical upper assembly. 300 blackout caliber uppers use your standard .223/5.56 bolt carrier group and magazines. No special bolts or magazines to buy to get into a new caliber! Just drop an upper on your standard mil-spec AR-15 lower, and ..
    AR-15 300 AAC blackout 16" stainless steel straight fluted tactical...
    $299.99$399.95
    text_reviews
  • AR-15 300 AAC Blackout 5" Slick Profile Pistol Upper Assembly / Shark / American Flag
    AR-15 300 AAC Blackout 5" Slick Profile Pistol Upper Assembly / Shark / American Flag is a perfect addition to your AR pistol. No other modifications to your AR-15 is required. Uses standard AR-15/M16 BCG. All you need is 300 BLK ammo and this upper - and you have a new AR. Features:300 Blackou..
    AR-15 300 AAC Blackout 5" Slick Profile Pistol Upper Assembly / Sha...
    $259.95$399.95
    text_reviews
  • AR-15 300 AAC BLK 14.5'' PISTOL UPPER ASSEMBLY / 7" FAKE SUPPRESSOR / MLOK
    AR-15 300 AAC BLK 14.5'' PISTOL UPPER ASSEMBLY / 7" FAKE SUPPRESSOR / MLOK is a perfect addition to your pistol look. Just drop this pistol upper assembly on your Mil-Spec lower receiver and enjoy the outdoors. Created by MA especially for you, all USA made. BARREL - 14.5" 41V50 CMV STEEL&nbs..
    AR-15 300 AAC BLK 14.5'' PISTOL UPPER ASSEMBLY / 7" FAKE SUPPRESSOR...
    $299.95$449.95
    text_reviews
  • AR-15 300 Blackout 16" Chrome Moly Upper Assembly / Blue / Triport
    AR-15 300 Blackout 16" Chrome Moly Upper Assembly / Blue / Triport - perfect upgrade for your AR-15 modern sporting rifle. Some features include:1. Lightweight semi-automatic design in anodized blue.2. 300 Blackout: The .300 Blackout, also known as 7.62×35mm is a rifle cartridge developed in th..
    AR-15 300 Blackout 16" Chrome Moly Upper Assembly / Blue / Triport ...
    $299.95$399.95
  • AR-15 300 BLACKOUT 16" STAINLESS BLACK CLAW UPPER ASSEMBLY / 12" MLOK
    AR-15 300 BLK 16" STAINLESS BLACK CLAW PREMIUM UPPER ASSEMBLY / MLOK Barrel - 16" 416R stainless steel contour barrel. Hardened to 26-32 rc and stress relieved. Chambered in .300 BLACKOUT AAC, 1-8 rh twist. Bear Claw spiral flutes. Button rifled. .750 under gas block. 5/8-24 threads. Barre..
    AR-15 300 BLK 16" STAINLESS BLACK CLAW PREMIUM UPPER ASSEMBLY / MLO...
    $299.95$399.95
    text_reviews