Dark Storm Industries DS-15 Complete Upper 16" Typhoon 5.56 Threaded Black 5.56 DSI-UC5-TYP-T5-BLK

Aero Precision M4e1 Upper Receivers Complete Threaded 5.56mm - M4e1 5.56 Assembld Upper M4 16" Bbl

This complete upper includes Aero Precision's new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Their... ... more

Sharps Bros Ar-15/M4 5.56mm Complete Upper - Ar-15/M4 5.56mm 16" Bbl 15" Handguard Complete Upper

Complete Sharps Bros SBUR04 upper with 15" full top rail handguard. 16" AR15 Upper, 5.56 CAL, 15" Handguard, M16 black DLC coated BCG, Radian Charging Handle, Mid Length Gas System. Full Top Rail. MLOK 7 sides. Total Weight of complete upper (including... ... more

Dark Storm Industries DS-15 Complete Upper 16" Lightning 5.56 Threaded Black 5.56 DSI-UC5-LGT-T5-BLK

Dark Storm Industries DS-15 Complete Upper 16" Lightning 5.56 Threaded Black 5.56 DSI-UC5-LGT-T5-BLK. 750 Micro Gas Block and Carbine Gas System. Specifications for Dark Storm Industries DS-15 16" Lightning 5.56 Upper Receiver: Manufacturer: Dark Storm... ... more

Dark Storm Industries DS-15 Complete Upper 16" MOE 5.56 Threaded Black 5.56 DSI-UC5-MOE-T5-BLK

Dark Storm Industries DS-15 Complete Upper 16" MOE 5.56 Threaded Black 5.56 DSI-UC5-MOE-T5-BLK. Specifications for Dark Storm Industries DS-15 16" MOE 5.56 Upper Receiver: Manufacturer: Dark Storm Industries Cartridge: 5.56x45mm NATO Barrel Length: 16... ... more

Dark Storm Industries DS-15 Typhoon Complete Upper Receiver 5.56 NATO 7.5in Barrel M4 Pistol Profile 1-7 Twist 1/2x28 Thread M-Lok Firestorm Type III

Dark Storm Industries DS-15 Typhoon Complete Upper Receiver 5.56 NATO 7.5in Barrel M4 Pistol Profile 1-7 Twist 1/2x28 Thread M-Lok Firestorm Type III. 750 Micro Gas Block andPistol Gas System DSI 7.5" SOCOM 5.56 Threaded 1:7 Nitrite Barrel andDSI... ... more

Radical Firearms Complete Upper Assembly 16 inch 5.56 SOCOM mid 15 inch MHR A2 Flash Hider w/BCG and CH Black CFU16-5.56SOC-15MHR

Radical Firearms Complete Upper Assembly 16 inch 5.56 SOCOM mid 15 inch MHR A2 Flash Hider w/BCG and CH Black CFU16-5.56SOC-15MHR. 56mm is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter... ... more

Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver 10.5in 5.56 Carbine RM9.2 Anodized Black APAR712702M2

Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver 10.5in 5.56 Carbine RM9.2 Anodized Black APAR712702M2. The included ATLAS R-ONE Handguard is designed with size and weight in mind while still providing plenty of real-estate to... ... more

Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver 10.5in 5.56 Carbine SM9.2 Anodized Black APAR712102M2

Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver 10.5in 5.56 Carbine SM9.2 Anodized Black APAR712102M2. The included ATLAS R-ONE Handguard is designed with size and weight in mind while still providing plenty of real-estate to... ... more

Aero Precision Threaded Upper Receiver M4E1 5.56 11.5 inch Barrel 9 inch M-LOK ATLAS S-ONE Handguard A2 Flash Hider Anodized Black APAR700302M29

Aero Precision Threaded Upper Receiver M4E1 5.56 11.5 inch Barrel 9 inch M-LOK ATLAS S-ONE Handguard A2 Flash Hider Anodized Black APAR700302M29. 5in 5.56 w/ ATLAS S-ONE w/ A2 Flash Hider Handguard Complete Upper Receiver. Each of these AR15 Upper... ... more

Aero Precision AR-15 Complete Upper Receiver 5.56 Mid-Length 16 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider Anodized Black

Aero Precision AR-15 Complete Upper Receiver 5.56 Mid-Length 16 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider Anodized Black. 56 Rifle Length Barrel w/ Pinned FSB and Magpul MOE Rifle Length Handguard Specifications for Aero Precision... ... more

Aero Precision AR-15 Complete Upper Receiver 5.56 Mid-Length 16 inch Barrel w/Pinned FSB Magpul MOE SL Handguard A2 Flash Hider Anodized Black

Aero Precision AR-15 Complete Upper Receiver 5.56 Mid-Length 16 inch Barrel w/Pinned FSB Magpul MOE SL Handguard A2 Flash Hider Anodized Black. These AR15 Upper Receivers from the innovators at Aero Precision feature a 5.56 barrel that is chambered for... ... more

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 16 inch Barrel w/Pinned FSB Magpul MOE SL Handguard A2 Flash Hider Anodized Black

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 16 inch Barrel w/Pinned FSB Magpul MOE SL Handguard A2 Flash Hider Anodized Black. These AR15 Upper Receivers from the innovators at Aero Precision feature a 5.56 barrel that is chambered... ... more

Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver 16in 5.56 Mid RM15 Anodized Black APAR712705M7

Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver 16in 5.56 Mid RM15 Anodized Black APAR712705M7. The M4E1 Enhanced Upper Receiver is a one-piece design combining the handguard mounting platform with the upper receiver itself.... ... more

Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver 16in 5.56 Mid SM15 Anodized Black APAR712105M7

Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver 16in 5.56 Mid SM15 Anodized Black APAR712105M7. The M4E1 Enhanced Upper Receiver is a one-piece design combining the handguard mounting platform with the upper receiver itself.... ... more

CBC Industries AR-15 Upper Assembly 5.56 NATO 16in 1-8 12in Tactical Keymod Black 160-604

CBC Industries AR-15 Upper Assembly 5.56 NATO 16in 1-8 12in Tactical Keymod Black 160-604. It isbuilt around a 16 inch 4150 chrome moly barrel and has a black nitride finish. The upper receiver is a forged M4 flat top upper allowing you to easily... ... more

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 16 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider Anodized Black

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 16 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider Anodized Black. 56 Rifle Length Barrel w/ Pinned FSB and Magpul MOE Rifle Length Handguard Specifications for Aero... ... more

TacFire Complete Upper Assembly 5.56 NATO 16in Type III Hard Anodized Black Large BU-556-16

TacFire Complete Upper Assembly 5.56 NATO 16in Type III Hard Anodized Black Large BU-556-16. 56 NATO barrel along with a M-LOK freefloating handguard. Mil-Spec BCG and charging handle are included in this build. Specifications for TacFire 5.56 NATO... ... more

Aero Precision Complete Upper Receiver M4E1 Threaded 5.56 16.3in Barrel Gov Profile Mid-Length GS 1-7 Twist 1/2 x 28 ATLAS R-ONE HG VG6 Delta Flash

Aero Precision Complete Upper Receiver M4E1 Threaded 5.56 16.3in Barrel Gov Profile Mid-Length GS 1-7 Twist 1/2 x 28 ATLAS R-ONE HG VG6 Delta Flash. 56 Cold Hammer Forged Barrel that is paired with our PRO 5.56 BCG. Included ATLAS R-ONE Handguard... ... more

Aero Precision Threaded Upper Receiver M4E1 5.56 11.5 inch Barrel 9 inch M-LOK ATLAS S-ONE Handguard A2 Flash Hider Flat Dark Earth APAR700312M29

Aero Precision Threaded Upper Receiver M4E1 5.56 11.5 inch Barrel 9 inch M-LOK ATLAS S-ONE Handguard A2 Flash Hider Flat Dark Earth APAR700312M29. 5in 5.56 w/ ATLAS S-ONE w/ A2 Flash Hider Handguard Complete Upper Receiver. Each of these AR15 Upper... ... more

POF USA Minuteman Complete Upper Black Anodized 16" 5.56 1652

POF USA Minuteman Complete Upper Black Anodized 16" 5.56 1652. 56. The Minuteman is available with a 10.5" Barrel with a 9" Handguard and a Carbine Length Lo Pro DI Gas Block or a 16" barrel with a 14.5" handguard and a Mid Length Lo Pro DI Gas Block.... ... more

Brigade Manufacturing AR Complete Upper Receiver Forged 5.56 16 inch Barrel Black Charging Handle 15 inch Rail A2 Flash Hider U5611610

Brigade Manufacturing AR Complete Upper Receiver Forged 5.56 16 inch Barrel Black Charging Handle 15 inch Rail A2 Flash Hider U5611610. 56 BCG provides the end user with a mil-spec bore and grooved free float profile barrel. Combined with a U-shaped... ... more

Dark Storm Industries DS-15 Complete Upper Receiver TYPHOON Model .300 Blackout 16in Barrel 1-8 Twist Threaded Black DSI-UC5-TYP-T3-BLK

Dark Storm Industries DS-15 Complete Upper Receiver TYPHOON Model .300 Blackout 16in Barrel 1-8 Twist Threaded Black DSI-UC5-TYP-T3-BLK. 300 Blackout Threaded Upper Receiver. These AR15 Upper Receivers from the skilled product experts at Dark Storm... ... more

Dark Storm Industries DS-15 Complete Upper Receiver TYPHOON Model .300 Blackout 16in Barrel 1-8 Twist Non-Threaded Black DSI-UC5-TYP-N3-BLK

Dark Storm Industries DS-15 Complete Upper Receiver TYPHOON Model .300 Blackout 16in Barrel 1-8 Twist Non-Threaded Black DSI-UC5-TYP-N3-BLK. 300 Blackout Non-Threaded Upper Receiver was made to function as the best item for anyone needing a top quality... ... more

POF USA Minuteman Complete Upper Black Anodized 10.5" 5.56 1654

POF USA Minuteman Complete Upper Black Anodized 10.5" 5.56 1654. 56. The Minuteman is available with a 10.5" Barrel with a 9" Handguard and a Carbine Length Lo Pro DI Gas Block or a 16" barrel with a 14.5" handguard and a Mid Length Lo Pro DI Gas... ... more

Radical Firearms Complete Upper Assembly 16in 5.56 SOCOM 1/7 Twist 15in RPR M-LOK Zero Impulse Black CFU16-5.56SOC-15RPR-ZS

Radical Firearms Complete Upper Assembly 16in 5.56 SOCOM 1/7 Twist 15in RPR M-LOK Zero Impulse Black CFU16-5.56SOC-15RPR-ZS. 56SOC-15RPR-ZS Specifications for Radical Firearms 16 in. 5.56 SOCOM Upper Assembly w/ Zero Impulse Brake: Manufacturer:... ... more

Radical Firearms Complete Upper Assembly 16in 5.56 SOCOM 1/7 Twist 12in RPR M-LOK Zero Impulse Black CFU16-5.56SOC-12RPR-ZS

Radical Firearms Complete Upper Assembly 16in 5.56 SOCOM 1/7 Twist 12in RPR M-LOK Zero Impulse Black CFU16-5.56SOC-12RPR-ZS. 56SOC-15RPR-ZS Specifications for Radical Firearms 16 in. 5.56 SOCOM Upper Assembly w/ Zero Impulse Brake: Manufacturer:... ... more

CBC Industries Unassembled AR-15 Rifle Kit 16 in 5.56 Black U-205-100

CBC Industries Unassembled AR-15 Rifle Kit 16 in 5.56 Black U-205-100. To ensure even more strength the upper receiver is hard coat anodized. This .223 Wylde barrel is the perfect marriage of design and precision and can be utilized for both .223 and... ... more

Dark Storm Industries DS-15 Complete Upper Receiver MOE Model .300 Blackout 16in Barrel 1-8 Twist Threaded Black DSI-UC5-MOE-T3-BLK

Dark Storm Industries DS-15 Complete Upper Receiver MOE Model .300 Blackout 16in Barrel 1-8 Twist Threaded Black DSI-UC5-MOE-T3-BLK. 300 Blackout Threaded Upper Receiver was made to function as the best item for any person trying to find an exceptional... ... more

Luth-AR 16 in Light Weight Complete Upper Barrel Receiver Assembly - 5.56 1x9 twist MLOK Free Float Handguard Black 16 BAA3-L16M

Luth-AR 16 in Light Weight Complete Upper Barrel Receiver Assembly - 5.56 1x9 twist MLOK Free Float Handguard Black 16 BAA3-L16M. . Established by using some of the most heavy duty and long lasting resources around these AR15 Upper Receivers through... ... more

Dark Storm Industries DS-15 Typhoon Complete Upper Receiver .300 Blackout 7.5in Barrel M4 Pistol Profile 1-8 Twist 5/8x24 Thread M-Lok FirestormType

Dark Storm Industries DS-15 Typhoon Complete Upper Receiver .300 Blackout 7.5in Barrel M4 Pistol Profile 1-8 Twist 5/8x24 Thread M-Lok FirestormType. 5in .300 Blackout Complete Upper Receiver. These AR15 Upper Receivers through the expert product... ... more

Dark Storm Industries DS-15 5.56 Bolt Carrier Group BCG Phosphate Chrome DSI-BCG-556-PHC

Dark Storm Industries DS-15 5.56 Bolt Carrier Group BCG Phosphate Chrome DSI-BCG-556-PHC. 223 5.56 or .300 Blackout Specifications for Dark Storm Industries DS-15 5.56 Bolt Carrier Group (BCG): Manufacturer: Dark Storm Industries Fabric/Material: Steel... ... more

Dark Storm Industries DS-15 Complete Upper Receiver MOE Model .300 Blackout 16in Barrel 1-8 Twist Non-Threaded Black DSI-UC5-MOE-N3-BLK

Dark Storm Industries DS-15 Complete Upper Receiver MOE Model .300 Blackout 16in Barrel 1-8 Twist Non-Threaded Black DSI-UC5-MOE-N3-BLK. 300blk is the model we make for those that want a simple and clean build with a great barrel. It is built with the... ... more

Dark Storm Industries DS-15 5.56 Bolt Carrier Group BCG Nickel Boron DSI-BCG-556-NIB

Dark Storm Industries DS-15 5.56 Bolt Carrier Group BCG Nickel Boron DSI-BCG-556-NIB. 223 5.56 or .300 Blackout Specifications for Dark Storm Industries DS-15 5.56 Bolt Carrier Group (BCG): Manufacturer: Dark Storm Industries Fabric/Material: Steel... ... more

Luth-AR 16 in Light Weight Complete Upper Barrel Receiver Assembly - 5.56 1x7 twist M-LOK Free Float Handguard Black 16 BA-L16-7M

Luth-AR 16 in Light Weight Complete Upper Barrel Receiver Assembly - 5.56 1x7 twist M-LOK Free Float Handguard Black 16 BA-L16-7M. . Established by using some of the most heavy duty and long lasting resources around these AR15 Upper Receivers through... ... more

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid-Length Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black Anodized

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid-Length Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black Anodized. Specifications for Aero Precision M4E1 16in 5.56 ATLAS R-ONE M-LOK Complete Upper Receiver with Flash... ... more

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid Length Pencil Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid Length Pencil Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black. Specifications for Aero Precision M4E1 16in 5.56 ATLAS R-ONE M-LOK Complete Upper Receiver with Flash Hider:... ... more

XTS Complete Upper Receiver w/o BCG w/ Ce Rail AR-15 .223/5.56 16.5in 7.5in Barrel Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Finish

XTS Complete Upper Receiver w/o BCG w/ Ce Rail AR-15 .223/5.56 16.5in 7.5in Barrel Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Finish. 5in 5.56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. These... ... more