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Carbine / Rifle Length
From its humble origins in the U.S. military, the 300 Blackout has grown in popularity as more customers recognize its versatility and extreme performance. Moriarti Arms ® offers a wide variety of AR builds, assemblies, parts and more, chambered in the versatile 300 blackout cartridge.
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AR-15 300 AAC Blackout 16" Carbine "BLACK CANON" UPPER ASSEMBLY . CA and NY compliant.Action: Semi-autoGas System: Pistol Length Gas SystemChamber: 300 BlackoutTwist Rate: 1/8 button rifledBarrel: 16" heavy barrel, 4150V steel, chrome moly, heat treated, black, M4 ..AR-15 300 AAC Blackout 16" Carbine "BLACK CANON" UPPER ASSEMBLY&nbs...$269.95$399.95
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AR-15 300 AAC Blackout 16" Carbine "CLAW" UPPER ASSEMBLY / MLOK . CA and NY compliant.Action: Semi-autoGas System: Pistol Length Gas SystemChamber: 300 BlackoutTwist Rate: 1/8 button rifledBarrel: 16" heavy barrel, 4150V steel, chrome moly, heat treated, black, M4 ..AR-15 300 AAC Blackout 16" Carbine "CLAW" UPPER ASSEMBLY / MLOK&nbs...$269.95$399.95 -
AR-15 300AAC Blackout 16" Diamond "Predator" Upper Assembly. Created by Moriarti Armaments. CA and NY compliant.Action: Semi-auto Gas System: Carbine Length Gas System Chamber: 300 Blackout Twist Rate: 1/8 button rifled Barrel: 16" heavy barrel, 4150V s..AR-15 300AAC Blackout 16" Diamond "Predator" Upper Assembly. Create...$399.95 -
AR-15 300AAC Blackout 16" Fluted "Black Shark" Upper Assembly. Created by Moriarti Armaments. CA and NY compliant. Action: Semi-auto Gas System: Carbine Length Gas System Chamber: 300 Blackout Twist Rate: 1/8 button rifled Barrel: 16" heavy barrel,..AR-15 300AAC Blackout 16" Fluted "Black Shark" Upper Assembly. Crea...$399.95
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Barrel Length: 16"Gas System: PistolBarrel Steel: 4150V Chrome Moly VanadiumBarrel Finish: PhosphateMuzzle Thread: 5/8-24Chamber: 300 BlackoutTwist Rate: 1 in 8"Barrel Extension: M4Diameter at Gas Block: .750"Gas Block Type: Low-profile steelMuzzle Device: Triport Muzzle BrakeReceiver Material: Forg..Barrel Length: 16"Gas System: PistolBarrel Steel: 4150V Chrome Moly...$229.95$349.95 -
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...$449.95 -
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 8"Barrel Extension: M4Diamet..AR-15 16" 300AAC BLK BARRETT STYLE 15" LIGHTWEIGHT FDE UPPER....$299.95$399.95
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-800x800-200x200.JPG "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
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AR-15 16" 300 AAC BLACKOUT STAINLESS UPPER WITH THREAD PROTECTOR. New by Moriarti Armaments, CA and NY compliant. 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 stand..AR-15 16" 300 AAC BLACKOUT STAINLESS UPPER WITH THREAD PROTECTOR. N...$349.95
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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: 1/8, 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
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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" heavy contour barrel 415..AR-15 300 AAC blackout 16" pistol length upper assembly w/ 15" Mlok...$249.95$349.95
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AR-15 300 AAC blackout 16" stainless steel "Black Wolf" complete 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 contour barrel...AR-15 300 AAC blackout 16" stainless steel "Black Wolf" complete up...$299.95$429.95 -
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...$399.95$499.95 -
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 to buy 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...$399.95$499.95 -
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. The upper features:Barrel - 16" 416 stainless steel hbar contour barrel with x-treme spiral fluting. Hardened to 26-32 rc and stress relived. ..AR-15 300 AAC Blackout 16" stainless steel spiral fluted tacti...$399.95$499.95 -
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
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-200x200.JPG "AR-15 300 Blackout 16\" Combat Upper Assembly / 15\" Mlok / Multiport")
AR-15 300 Blackout 16" Combat Upper Assembly / 15" Mlok / Multiport features:Barrel - 16" 4150 CMV hbar. Chambered in 300 Blackout. 1-8 rh twist , .750 under gas block. 5/8x24 thread. Barrel is finished off with Multiport muzzle brake, designed to reduce muzzle rise and noise. M4 feedramps. A3&nb..AR-15 300 Blackout 16" Combat Upper Assembly / 15" Mlok / Multiport...$249.95$449.95 -
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