Special Offers

The Moriarti Armaments AR-15 .224 Valkyrie 20″ nitride upper assembly / Mlok comes complete with a 20" 4150 CMV steel barrel, nitride coated, 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 ..

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..

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 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 .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 16" Stainless Upper Assembly / Afterburner / 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 - 16" 416R stainless ..

AR-15 .450 Bushmaster 7.5" Pistol Build Kit / Linear Comp / Classic. This kit includes everything you need to complete your .450 pistol project except the lower receiver. It is based on AR-15 platform and features 4150 CMV barrel, M16 cut BCG, milspec lower parts and 4.3 heavy buffer.  Barre..

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. 1-14 rh twist. .875 under gas block diameter. Threaded 5/8x24.  Carbine gas system. Barrel is finished ..

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 .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 12.7x42 18" Parkerized Rifle Kit / 15" Mlok / Adaptive Stock / No Lower  features 18" parkerized heavy barrel with 1:20 twist rate, mid-length gas system. It includes a 15" MLOK Rail, an M4 flat-top forged upper receiver Socom style, 4.8 heavy buffer, milspec parts a..

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 ..

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..

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..

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..

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 Gas tube. Upper is finished off with a Free Float 17"..

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..

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 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" quadrail tactical pistol kit contains all components to complete your AR-15 build. The kit comes WITHOUT 80% stripped lower receiver.  All options and modifications to your kit are available on top of this page.  All components are Mil Spec and made i..