AR-15 300 AAC Blackout Uppers | Premium Quality Uppers | Moriarti Armaments

AR-15 300 Blackout Uppers

Discover AR-15 300 AAC Blackout Uppers by Moriarti Armaments. Our premium quality uppers are designed to enhance your AR-15’s performance with precision, durability, and power.

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AR-15 300 AAC Blackout 16" Carbine "BLACK CANON" UPPER ASSEMBLY AR-15 300 AAC Blackout 16" Carbine "BLACK CANON" UPPER ASSEMBLY
Sale
-33%
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AR-15 300 AAC Blackout 16" Carbine "BLACK CANON" UPPER ASSEMBLY

AR-15 300 AAC Blackout 16" Carbine "BLACK CANON" UPPER ASSEMBLY . Discover unparalleled pe..

$269.95 $399.95
AR-15 300 AAC Blackout 16" Carbine "CLAW" Upper Assembly / MLOK AR-15 300 AAC Blackout 16" Carbine "CLAW" Upper Assembly / MLOK
Sale
-28%

AR-15 300 AAC Blackout 16" Carbine "CLAW" Upper Assembly / MLOK

AR-15 300 AAC Blackout 16" Carbine "CLAW" Upper Assembly / MLOK - CA & NY CompliantUpgrade your ..

$289.95 $399.95
AR-15 300 AAC Blackout 5" Slick Profile Pistol Upper Assembly – Shark Muzzle Brake / American Flag Engraving
Sale
-35%
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AR-15 300 AAC Blackout 5" Slick Profile Pistol Upper Assembly – Shark Muzzle Brake / American Flag Engraving

AR-15 300 AAC Blackout 5" Slick Profile Pistol Upper Assembly – Shark Muzzle Brake / American Flag E..

$259.95 $399.95
AR-15 300 Blackout 16" Med Profile Black Shark Upper Assembly / Mlok AR-15 300 Blackout 16" Med Profile Black Shark Upper Assembly / Mlok
Sale
-35%
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AR-15 300 Blackout 16" Med Profile Black Shark Upper Assembly / Mlok

AR-15 300 Blackout 16" Med Profile Black Shark Upper Assembly / Mlok. Created by Moriarti Armaments...

$259.95 $399.95
AR-15 300 Blackout 5" Centurion Upper Assembly / MLOK – Choose Handguard Color AR-15 300 Blackout 5" Centurion Upper Assembly / MLOK – Choose Handguard Color
Sale
-36%

AR-15 300 Blackout 5" Centurion Upper Assembly / MLOK – Choose Handguard Color

AR-15 300 Blackout 5" Centurion Upper Assembly / Color MLOK – Choose Your ColorUnleash unmatched pre..

$289.95 $449.95
AR-15 300 Blackout 5" PISTOL BILLET UPPER / 4'' MLOK / GOLD MUZZLE / CH
Sale
-30%

AR-15 300 Blackout 5" PISTOL BILLET UPPER / 4'' MLOK / GOLD MUZZLE / CH

AR-15 300 Blackout 5" PISTOL BILLET UPPER / 4'' MLOK / GOLD MUZZLE BRAKE FEATURES:300 Blackout 5 Inc..

$279.95 $399.95
AR-15 300 BLACKOUT 5'' PISTOL BILLET UPPER / CH / 4'' MLOK / STAY SPOOKY- COLOR SET
Sale
-30%
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AR-15 300 BLACKOUT 5'' PISTOL BILLET UPPER / CH / 4'' MLOK / STAY SPOOKY- COLOR SET

AR-15 300 BLACKOUT 5'' PISTOL BILLET UPPER / 4'' MLOK / STAY SPOOKY- COLOR SET. New by Moriarti Arma..

$279.95 $399.95
AR-15 300 Blackout 7.5" Slick Upper Assembly / Sound Forwarder / Mlok / 1x7 AR-15 300 Blackout 7.5" Slick Upper Assembly / Sound Forwarder / Mlok / 1x7
Sale
-33%

AR-15 300 Blackout 7.5" Slick Upper Assembly / Sound Forwarder / Mlok / 1x7

Upgrade your AR-15 build with this 300 Blackout 7.5" Nitride Upper Assembly from Moriarti Armaments,..

$269.95 $399.95
AR-15 300 BLK 5" Pistol Hybrid Upper Assembly / Spitfire/ Mlok Rail AR-15 300 BLK 5" Pistol Hybrid Upper Assembly / Spitfire/ Mlok Rail
Sale
-33%

AR-15 300 BLK 5" Pistol Hybrid Upper Assembly / Spitfire/ Mlok Rail

AR-15 300 BLK 5" Pistol Hybrid Upper Assembly / Spitfire/ Mlok Rail is designed with compatibil..

$299.95 $449.95
AR-15 300 BLK 5" Pistol Hybrid Upper Assembly with Cone & M-LOK Rail
Sale
-33%
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AR-15 300 BLK 5" Pistol Hybrid Upper Assembly with Cone & M-LOK Rail

The AR-15 300 BLK 5" Pistol Hybrid Upper Assembly is designed to deliver outstanding performance, pr..

$289.95 $429.95
AR-15 300 BLK 5" Pistol Upper Assembly - Gold Spitfire / Mlok AR-15 300 BLK 5" Pistol Upper Assembly - Gold Spitfire / Mlok
Sale
-36%

AR-15 300 BLK 5" Pistol Upper Assembly - Gold Spitfire / Mlok

AR-15 300 BLK 5" Pistol Upper Assembly - Gold Spitfire / MlokUnleash precision, power, and performan..

$299.95 $469.95
AR-15 5" Pistol Upper Assembly | PVD Spitfire Muzzle Device | M-LOK Handguard | Choose Caliber AR-15 5" Pistol Upper Assembly | PVD Spitfire Muzzle Device | M-LOK Handguard | Choose Caliber
Sale
-33%

AR-15 5" Pistol Upper Assembly | PVD Spitfire Muzzle Device | M-LOK Handguard | Choose Caliber

AR-15 5" Pistol Upper Assembly | PVD Spitfire Muzzle Device | M-LOK Handguard | Choose CaliberUnlock..

$299.95 $449.95
Moriarti AR-15 300 Blackout 10.5" Diamond Cut 10" Mlok Upper Assembly / Burnt Bronze
Sale
-40%

Moriarti AR-15 300 Blackout 10.5" Diamond Cut 10" Mlok Upper Assembly / Burnt Bronze

Elevate your AR-15 with the Moriarti Armaments 300 Blackout 10.5" Diamond Cut Upper Assembly, design..

$299.95 $499.95
Moriarti AR-15 300 Blackout 10.5" Diamond Cut Upper Assembly / Triport / Mlok / Black
Sale
-25%

Moriarti AR-15 300 Blackout 10.5" Diamond Cut Upper Assembly / Triport / Mlok / Black

Moriarti AR-15 300 Blackout 10.5" Diamond Cut Upper Assembly / Triport / Mlok / BlackManufacturer:Mo..

$299.95 $399.95
Moriarti AR-15 300 Blackout 14.5" Slim M-LOK Upper Assembly - 12" Free-Float Handguard / Thread Protector / 1X7 Twist Moriarti AR-15 300 Blackout 14.5" Slim M-LOK Upper Assembly - 12" Free-Float Handguard / Thread Protector / 1X7 Twist
Sale
-27%

Moriarti AR-15 300 Blackout 14.5" Slim M-LOK Upper Assembly - 12" Free-Float Handguard / Thread Protector / 1X7 Twist

Elevate your AR-15 build with the Moriarti Armaments 300 Blackout 14.5" Slim M-LOK Upper Assembly, d..

$289.99 $399.95
Moriarti Armaments AR-15 300 Blackout 5" Cookie Cutter Upper Assembly Moriarti Armaments AR-15 300 Blackout 5" Cookie Cutter Upper Assembly
Sale
-36%

Moriarti Armaments AR-15 300 Blackout 5" Cookie Cutter Upper Assembly

Moriarti Armaments 300 Blackout 5" Cookie Cutter Upper Assembly – Precision and PerformanceElevate y..

$289.95 $449.95
AR-15 .300 BLK 16" PISTOL LENGTH UPPER ASSEMBLY / 1:7 / 12" MLOK / TRIPORT
Sale
-30%

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 readil..

$279.95 $399.95
AR-15 .300 BLK 16" PISTOL UPPER ASSEMBLY /15" MLOK / CERAKOTE & CHOOSE
Sale
-36%

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. ..

$289.95 $449.95
AR-15 16" 300 AAC BLACKOUT  BARRETT STYLE 15" LIGHTWEIGHT UPPER / FDE AR-15 16" 300 AAC BLACKOUT  BARRETT STYLE 15" LIGHTWEIGHT UPPER / FDE
Sale
-28%
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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 ..

$289.95 $399.95
AR-15 16" 300 AAC Blackout Pistol Length 1/8 Nitride Upper | 15" Lightweight Mlok
Sale
-25%
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AR-15 16" 300 AAC Blackout Pistol Length 1/8 Nitride Upper | 15" Lightweight Mlok

300 AAC Blackout uppers utilize a standard .223/5.56 bolt carrier group and magazines, eliminating t..

$299.95 $399.95
AR-15 300 AAC 16" MLOK Upper Assembly with Slip Over Barrel Shroud | Pistol Length Gas System AR-15 300 AAC 16" MLOK Upper Assembly with Slip Over Barrel Shroud | Pistol Length Gas System
Sale
-28%
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AR-15 300 AAC 16" MLOK Upper Assembly with Slip Over Barrel Shroud | Pistol Length Gas System

The AR-15 300 AAC 16" MLOK Upper Assembly with Slip Over Barrel Shroud is engineered for shooters se..

$289.95 $399.95
AR-15 300 AAC blackout 16" pistol length upper assembly / 15" Mlok / Tri AR-15 300 AAC blackout 16" pistol length upper assembly / 15" Mlok / Tri
Sale
-28%
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AR-15 300 AAC blackout 16" pistol length upper assembly / 15" Mlok / Tri

Transform your AR-15 with this 300 AAC Blackout 16" Pistol Length Upper Assembly. Designed for easy ..

$289.95 $399.95
AR-15 300 AAC Blackout 16" Stainless Black Wolf Upper Assembly / Mlok AR-15 300 AAC Blackout 16" Stainless Black Wolf Upper Assembly / Mlok
Sale
-30%
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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 u..

$299.95 $429.95
AR-15 300 AAC blackout 16" stainless steel black diamond upper assembly AR-15 300 AAC blackout 16" stainless steel black diamond upper assembly
Sale
-36%

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..

$349.95 $549.95
AR-15 300 AAC Blackout 16" Stainless Steel Diamond Fluted Upper Assembly | MLOK Rail AR-15 300 AAC Blackout 16" Stainless Steel Diamond Fluted Upper Assembly | MLOK Rail
Sale
-45%

AR-15 300 AAC Blackout 16" Stainless Steel Diamond Fluted Upper Assembly | MLOK Rail

The AR-15 300 AAC Blackout 16" Stainless Steel Diamond Fluted Upper Assembly is a high-performance u..

$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 /Mlok
Sale
-40%

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 ..

$299.95 $499.95
AR-15 300 AAC blackout 16" stainless straight fluted tactical upper assembly / Mlok AR-15 300 AAC blackout 16" stainless straight fluted tactical upper assembly / Mlok
Sale
-25%
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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 cal..

$299.99 $399.95
AR-15 300 AAC BLK 14.5" Pistol Upper Assembly / 7" Fake Suppressor / M-LOK – Built for Precision and Style AR-15 300 AAC BLK 14.5" Pistol Upper Assembly / 7" Fake Suppressor / M-LOK – Built for Precision and Style
Sale
-33%
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AR-15 300 AAC BLK 14.5" Pistol Upper Assembly / 7" Fake Suppressor / M-LOK – Built for Precision and Style

AR-15 300 AAC BLK 14.5" Pistol Upper Assembly / 7" Fake Suppressor / M-LOK – Built for Precision and..

$299.95 $449.95
AR-15 300 Blackout 16" Chrome Moly Upper Assembly - Anodized Blue with Triport Muzzle Brake AR-15 300 Blackout 16" Chrome Moly Upper Assembly - Anodized Blue with Triport Muzzle Brake
Sale
-25%

AR-15 300 Blackout 16" Chrome Moly Upper Assembly - Anodized Blue with Triport Muzzle Brake

AR-15 300 Blackout 16" Chrome Moly Upper Assembly - Anodized Blue with Triport Muzzle BrakeUpgrade y..

$299.95 $399.95
AR-15 300 BLACKOUT 16" STAINLESS BLACK CLAW UPPER ASSEMBLY / 12" MLOK AR-15 300 BLACKOUT 16" STAINLESS BLACK CLAW UPPER ASSEMBLY / 12" MLOK
Sale
-25%
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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 stainles..

$299.95 $399.95
AR-15 300 Blackout 6" Modular Pistol Upper Assembly / Hybrid Mlok / A2 AR-15 300 Blackout 6" Modular Pistol Upper Assembly / Hybrid Mlok / A2
Sale
-29%

AR-15 300 Blackout 6" Modular Pistol Upper Assembly / Hybrid Mlok / A2

AR-15 300 Blackout 6" Modular Pistol Upper Assembly | Hybrid MLOK | A2 Flash HiderFeatures:Premium B..

$269.95 $379.95
AR-15 Moriarti Duo TakeDown 16" Carbine Upper Assembly | 5.56 Nato and 300 Blk Complete Combo AR-15 Moriarti Duo TakeDown 16" Carbine Upper Assembly | 5.56 Nato and 300 Blk Complete Combo
Sale
-43%

AR-15 Moriarti Duo TakeDown 16" Carbine Upper Assembly | 5.56 Nato and 300 Blk Complete Combo

AR-15 Moriarti Duo TakeDown 16" Carbine Upper Assembly | 5.56 Nato and 300 Blk Complete Combo - you ..

$799.95 $1,399.95
MORIARTI AR-15 300 BLACKOUT 16" DIAMOND CUT 12" MLOK UPPER ASSEMBLY / A2 / BLACK
Sale
-28%

MORIARTI AR-15 300 BLACKOUT 16" DIAMOND CUT 12" MLOK UPPER ASSEMBLY / A2 / BLACK

MORIARTI AR-15 300 BLACKOUT 16" DIAMOND CUT 12" MLOK UPPER ASSEMBLY / A2 / BLACK Manufacturer: &n..

$289.95 $399.95
AR-15 7.5" Pistol Upper Assembly | Choose Caliber | Gradient Cerakote Finish | Premium Performance AR-15 7.5" Pistol Upper Assembly | Choose Caliber | Gradient Cerakote Finish | Premium Performance
Sale
-25%
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AR-15 7.5" Pistol Upper Assembly | Choose Caliber | Gradient Cerakote Finish | Premium Performance

AR-15 7.5" Pistol Upper Assembly | Choose Caliber | Gradient Cerakote Finish | Premium PerformanceEl..

$299.95 $399.95
Moriarti AR-15 300 BLK 7.5" Honeycomb Chrome Moly Upper Assembly | Choose Color MLOK | Trident Cone Flash Can Moriarti AR-15 300 BLK 7.5" Honeycomb Chrome Moly Upper Assembly | Choose Color MLOK | Trident Cone Flash Can
Sale
-40%
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Moriarti AR-15 300 BLK 7.5" Honeycomb Chrome Moly Upper Assembly | Choose Color MLOK | Trident Cone Flash Can

Moriarti AR-15 300 BLK 7.5" Honeycomb Chrome Moly Upper Assembly | Choose Color MLOK | Trident Cone ..

$299.95 $499.95
AR-15 300 AAC Blackout 7.5" MLOK Upper Assembly – Flash Cone / 1x7 Twist AR-15 300 AAC Blackout 7.5" MLOK Upper Assembly – Flash Cone / 1x7 Twist
Sale
-33%
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AR-15 300 AAC Blackout 7.5" MLOK Upper Assembly – Flash Cone / 1x7 Twist

Enhance your AR-15 build with the AR-15 300 AAC Blackout 7.5" MLOK Upper Assembly, featuring a pisto..

$269.95 $399.95
AR-15 300 Blackout  7.5" Pistol Zombie Slayer Upper Assembly / Mlok AR-15 300 Blackout  7.5" Pistol Zombie Slayer Upper Assembly / Mlok
Sale
-29%

AR-15 300 Blackout 7.5" Pistol Zombie Slayer Upper Assembly / Mlok

AR-15 300 Blackout 7.5" Pistol Zombie Slayer Upper Assembly / MLOKUnleash superior performance with ..

$249.95 $349.95
AR-15 300 Blackout 7.5" Mlok Upper Assembly / Blue Shroud / Blue Accents / Charging Handle Included
Sale
-36%

AR-15 300 Blackout 7.5" Mlok Upper Assembly / Blue Shroud / Blue Accents / Charging Handle Included

AR-15 300 Blackout 7.5" Mlok Upper Assembly / Blue Shroud / Blue Accents / Charging Handle IncludedU..

$289.95 $449.95
AR-15 300 Blackout 7.5" Patriotic Upper Assembly / Red Accents / Charging Handle / Shroud AR-15 300 Blackout 7.5" Patriotic Upper Assembly / Red Accents / Charging Handle / Shroud
Sale
-33%

AR-15 300 Blackout 7.5" Patriotic Upper Assembly / Red Accents / Charging Handle / Shroud

AR-15 300 Blackout 7.5" Patriotic Upper Assembly / Red Accents / Charging Handle / ShroudShow your p..

$299.95 $449.95
AR-15 300 Blackout 7.5" Pistol Shark Upper Assembly /Mlok AR-15 300 Blackout 7.5" Pistol Shark Upper Assembly /Mlok
Sale
-20%
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AR-15 300 Blackout 7.5" Pistol Shark Upper Assembly /Mlok

AR-15 300 Blackout 7.5" Pistol Shark Upper Assembly /Mlok Features:1. Barrel: The AR-15 300 Blackout..

$279.95 $349.95
AR-15 7.5" Cookie Cutter Upper Assembly / M-LOK | Choose Caliber: 5.56, 300 Blackout, 7.62x39
Sale
-40%
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AR-15 7.5" Cookie Cutter Upper Assembly / M-LOK | Choose Caliber: 5.56, 300 Blackout, 7.62x39

AR-15 7.5" Cookie Cutter Upper Assembly / M-LOK | Choose Caliber: 5.56, 300 Blackout, 7.62x39 | Prem..

$269.95 $449.95
AR-15 300 AAC blackout 10.5" nitride classic mlok upper assembly / A2 AR-15 300 AAC blackout 10.5" nitride classic mlok upper assembly / A2
Sale
-38%
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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..

$249.95 $399.95
AR-15 300 AAC Blackout 10.5" Pistol Upper Assembly | Flash Cone
Sale
-28%
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AR-15 300 AAC Blackout 10.5" Pistol Upper Assembly | Flash Cone

AR-15 300 AAC Blackout 10.5" Pistol Upper Assembly | Flash Cone | Precision PerformanceUpgrade your ..

$289.95 $399.95
AR-15 300 AAC BLK 10.5" Nitro-Met Quad Upper Assembly with Socom Style Brake AR-15 300 AAC BLK 10.5" Nitro-Met Quad Upper Assembly with Socom Style Brake
Sale
-35%
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AR-15 300 AAC BLK 10.5" Nitro-Met Quad Upper Assembly with Socom Style Brake

AR-15 300 AAC BLK 10.5" Nitro-Met Quad Upper Assembly with Socom Style Brake - Experience ..

$259.95 $399.95
AR-15 300 Blackout 10.5" Diamond Cut 10" M-LOK Upper Assembly / Slanted Muzzle / 1x7 Twist – Sniper Grey Cerakote Finish AR-15 300 Blackout 10.5" Diamond Cut 10" M-LOK Upper Assembly / Slanted Muzzle / 1x7 Twist – Sniper Grey Cerakote Finish
Sale
-33%

AR-15 300 Blackout 10.5" Diamond Cut 10" M-LOK Upper Assembly / Slanted Muzzle / 1x7 Twist – Sniper Grey Cerakote Finish

Unlock superior performance and style with the AR-15 300 Blackout 10.5" Diamond Cut 10" M-LOK U..

$299.95 $449.95
AR-15 300 BLK 10.5" Walking Dead pistol upper assembly / Mlok AR-15 300 BLK 10.5" Walking Dead pistol upper assembly / Mlok
Sale
-28%
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AR-15 300 BLK 10.5" Walking Dead pistol upper assembly / Mlok

AR-15 300 BLK 10.5" Walking Dead Pistol Upper Assembly | MLOK | Custom CompensatorIncludes:Premium B..

$289.95 $399.95
Moriarti AR-15 300 Blackout 10.5" Pistol Upper Assembly | 10" OD Green M-LOK | A2 Flash Hider Moriarti AR-15 300 Blackout 10.5" Pistol Upper Assembly | 10" OD Green M-LOK | A2 Flash Hider
Sale
-25%
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Moriarti AR-15 300 Blackout 10.5" Pistol Upper Assembly | 10" OD Green M-LOK | A2 Flash Hider

Moriarti AR-15 300 Blackout 10.5" Pistol Upper Assembly | 10" OD Green M-LOK | A2 Flash Hider | USA-..

$299.95 $399.95
Moriarti AR-15 300 Blackout 10.5" Pistol Upper Assembly | MLOK | Shroud Moriarti AR-15 300 Blackout 10.5" Pistol Upper Assembly | MLOK | Shroud
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-28%
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Moriarti AR-15 300 Blackout 10.5" Pistol Upper Assembly | MLOK | Shroud

Moriarti AR-15 300 Blackout 10.5" Pistol Upper Assembly | MLOK | Shroud | Precision EngineeringThe M..

$289.95 $399.95
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