Rock River Arms Completed Upper Receiver Tactical Carbine .458 SOCOM 16 Inch Barrel 1-14 Twist 5/8-32 Thread Free-Float Handguard Black SOC0564

Grid Defense Complete Upper Receiver 5.56mm 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Rail A2 Flash Hider Tactical Grape

Grid Defense Complete Upper Receiver 5.56mm 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Rail A2 Flash Hider Tactical Grape. 56 Upper Receiver. Grid Defense constructed these Mil-Spec AR15 Upper Receivers from 7075 T6 aluminum for a... ... more

Grid Defense Complete Upper Receiver 5.56mm 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Rail A2 Flash Hider Burnt Bronze

Grid Defense Complete Upper Receiver 5.56mm 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Rail A2 Flash Hider Burnt Bronze. 56 Upper Receiver. Grid Defense constructed these Mil-Spec AR15 Upper Receivers from 7075 T6 aluminum for a... ... more

Grid Defense Complete Upper Receiver 7.62x39 10.5 inch Carbine Length 4150 Steel Light HBAR Barrel 1-10 Twist A2 Flash Hider Flat Dark Earth

Grid Defense Complete Upper Receiver 7.62x39 10.5 inch Carbine Length 4150 Steel Light HBAR Barrel 1-10 Twist A2 Flash Hider Flat Dark Earth. 62x39mm upper receivers and build kits. We look forward to providing the tactical industry with top AR AR15... ... more

Ghost Firearms Elite Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2

Ghost Firearms Elite Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2. 62 Upper Receiver delivers complete AR comfort and compatibility. These AR15 Upper Receivers by... ... more

Grid Defense Complete Upper Receiver 5.56mm 10.5 inch Carbine Length 4150 Steel M4 Barrel 1-7 Twist A2 Flash Hider Tactical Grape GD105E9GFR556GRP

Grid Defense Complete Upper Receiver 5.56mm 10.5 inch Carbine Length 4150 Steel M4 Barrel 1-7 Twist A2 Flash Hider Tactical Grape GD105E9GFR556GRP. 56 Upper Receiver. Grid Defense constructed these Mil-Spec AR15 Upper Receivers from 7075 T6 aluminum... ... more

Grid Defense Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash

Grid Defense Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash. 62x39mm upper receivers and build kits. We look forward to providing the tactical industry with top... ... more

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Free Float Hand Guard A2

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Free Float Hand Guard A2. 56 Upper Receiver. Ghost Firearms machined these Mil-Spec AR15 Upper Receivers from 7075 T6 aluminum... ... more

Ghost Firearms Elite Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2

Ghost Firearms Elite Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2. 62 Upper Receiver delivers complete AR comfort and compatibility. These AR15 Upper Receivers by... ... more

Ghost Firearms Elite Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2

Ghost Firearms Elite Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2. 62 Upper Receiver delivers complete AR comfort and compatibility. These AR15 Upper Receivers by... ... more

Grid Defense Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash

Grid Defense Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash. 62x39mm upper receivers and build kits. We look forward to providing the tactical industry with top... ... more

Grid Defense Complete Upper Receiver 5.56mm 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Rail A2 Flash Hider Flat Dark Earth

Grid Defense Complete Upper Receiver 5.56mm 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Rail A2 Flash Hider Flat Dark Earth. 56 Upper Receiver. Grid Defense constructed these Mil-Spec AR15 Upper Receivers from 7075 T6 aluminum for... ... more

Grid Defense Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash

Grid Defense Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash. 62x39mm upper receivers and build kits. We look forward to providing the tactical industry with top... ... more

Grid Defense Complete Upper Receiver 7.62x39 10.5 inch Carbine Length 4150 Steel Light HBAR Barrel 1-10 Twist A2 Flash Hider Blue Titanium

Grid Defense Complete Upper Receiver 7.62x39 10.5 inch Carbine Length 4150 Steel Light HBAR Barrel 1-10 Twist A2 Flash Hider Blue Titanium. 62x39mm upper receivers and build kits. We look forward to providing the tactical industry with top AR AR15... ... more

Grid Defense Complete Upper Receiver 7.62x39 10.5 inch Carbine Length 4150 Steel Light HBAR Barrel 1-10 Twist A2 Flash Hider Tactical Grape

Grid Defense Complete Upper Receiver 7.62x39 10.5 inch Carbine Length 4150 Steel Light HBAR Barrel 1-10 Twist A2 Flash Hider Tactical Grape. 62x39mm upper receivers and build kits. We look forward to providing the tactical industry with top AR AR15... ... more

Grid Defense Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash

Grid Defense Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash. 62x39mm upper receivers and build kits. We look forward to providing the tactical industry with top... ... more

Ghost Firearms Elite Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2

Ghost Firearms Elite Complete Upper Receiver 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2. 62 Upper Receiver delivers complete AR comfort and compatibility. These AR15 Upper Receivers by... ... more

Ghost Firearms Vital Complete Upper Reciever 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 11 inch M-LOK Free Float Hand Guard A2

Ghost Firearms Vital Complete Upper Reciever 7.62x39 16 inch Carbine Length 4150 Light HBAR Barrel 1-10 Twist 11 inch M-LOK Free Float Hand Guard A2. 62 Upper Receiver gets your rifle into M-LOK mode and ensures that you can build the perfect upper... ... more

Grid Defense Complete Upper Receiver 5.56mm 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Rail A2 Flash Hider OD Green GD16E14GFR556OD

Grid Defense Complete Upper Receiver 5.56mm 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Rail A2 Flash Hider OD Green GD16E14GFR556OD. 56 Upper Receiver. Grid Defense constructed these Mil-Spec AR15 Upper Receivers from 7075 T6... ... more

Grid Defense Complete Upper Receiver 7.62x39 10.5 inch Carbine Length 4150 Steel Light HBAR Barrel 1-10 Twist A2 Flash Hider Burnt Bronze

Grid Defense Complete Upper Receiver 7.62x39 10.5 inch Carbine Length 4150 Steel Light HBAR Barrel 1-10 Twist A2 Flash Hider Burnt Bronze. 62x39mm upper receivers and build kits. We look forward to providing the tactical industry with top AR AR15... ... more

Grid Defense Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Rail A2 Flash Hider Tactical Grape

Grid Defense Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Rail A2 Flash Hider Tactical Grape. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable build... ... more

Alexander Arms AR15 Stripped Rifle Upper .50 Beowulf 16 in Barrel Carbine Length 1-20 Twist 49/64x20 Thread Thread Protector Black KIT-50

Alexander Arms AR15 Stripped Rifle Upper .50 Beowulf 16 in Barrel Carbine Length 1-20 Twist 49/64x20 Thread Thread Protector Black KIT-50. The Upper Receiver Built Kit comes with all the key components making it an excellent choice for a home build.... ... more

Aagil Arms Complete AR-15 .223 WYLDE Upper Assembly 16in Barrel Length Carbine 1-7 Twist w/ 15in Clamp on Key Mod Cerakote Flat Dark Earth Medium

Aagil Arms Complete AR-15 .223 WYLDE Upper Assembly 16in Barrel Length Carbine 1-7 Twist w/ 15in Clamp on Key Mod Cerakote Flat Dark Earth Medium. 223 WYLDE. 16" Barrel. Carbine Gas System. 15" Key-Mod Handguard. OD Green Receiver and Handguard... ... more

Aagil Arms Complete AR-15 .223 WYLDE Upper Assembly 16in Barrel Length Carbine 1-7 Twist w/ 15in Clamp on Key Mod Cerakote Robin Egg Blue Medium

Aagil Arms Complete AR-15 .223 WYLDE Upper Assembly 16in Barrel Length Carbine 1-7 Twist w/ 15in Clamp on Key Mod Cerakote Robin Egg Blue Medium. 223 WYLDE. 16" Barrel. Carbine Gas System. 15" Key-Mod Handguard. OD Green Receiver and Handguard... ... more

Aagil Arms Complete AR-15 .223 WYLDE Upper Assembly 16in Barrel Length Carbine 1-7 Twist w/ 15in Clamp on Key Mod Cerakote Olive Drab Green Medium

Aagil Arms Complete AR-15 .223 WYLDE Upper Assembly 16in Barrel Length Carbine 1-7 Twist w/ 15in Clamp on Key Mod Cerakote Olive Drab Green Medium. 223 WYLDE. 16" Barrel. Carbine Gas System. 15" Key-Mod Handguard. OD Green Receiver and Handguard... ... more

Rock River Arms Completed Upper Receiver A4 9MM Luger 10.5 Inch Barrel 1-10 Twist 1/2-36 Thread R4 Handguard A2 Flash Hider Black 9MM0364B

Rock River Arms Completed Upper Receiver A4 9MM Luger 10.5 Inch Barrel 1-10 Twist 1/2-36 Thread R4 Handguard A2 Flash Hider Black 9MM0364B. . Formulated working with several of the very most robust and dependable materials available these AR15 Upper... ... more

Rock River Arms Completed Upper Receiver A4 9MM Luger 7 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard A2 Flash Hider Black 9MM0365B

Rock River Arms Completed Upper Receiver A4 9MM Luger 7 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard A2 Flash Hider Black 9MM0365B. . Formulated working with several of the very most robust and dependable materials available these AR15... ... more

Rock River Arms Completed Upper Receiver A4 9MM Luger 4.5 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard Vortex Flash Hider Black 9MM0368

Rock River Arms Completed Upper Receiver A4 9MM Luger 4.5 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard Vortex Flash Hider Black 9MM0368. . Formulated working with several of the very most robust and dependable materials available these... ... more

Rock River Arms Completed Upper Receiver A4 9MM Luger 16 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard Brake Black 9MM0700.V1

Rock River Arms Completed Upper Receiver A4 9MM Luger 16 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard Brake Black 9MM0700.V1. . Formulated working with several of the very most robust and dependable materials available these AR15 Upper... ... more

Rock River Arms Completed Upper Receiver A4 .450 Bushmaster 20 Inch Barrel 1-24 Twist 5/8-32 Thread Free-Float Handguard Brake Black 450B0587

Rock River Arms Completed Upper Receiver A4 .450 Bushmaster 20 Inch Barrel 1-24 Twist 5/8-32 Thread Free-Float Handguard Brake Black 450B0587. 450 Bushmaster Completed Upper then you have come to the right spot.. Established working with several of... ... more

Rock River Arms Completed Upper Receiver A4 .450 Bushmaster 16 Inch Barrel 1-24 Twist 5/8-32 Thread Free-Float Handguard Brake Black 450B0592

Rock River Arms Completed Upper Receiver A4 .450 Bushmaster 16 Inch Barrel 1-24 Twist 5/8-32 Thread Free-Float Handguard Brake Black 450B0592. 450 Bushmaster Completed Upper then you have come to the right spot.. Established working with several of... ... more

Rock River Arms Completed Upper Receiver Coyote Rifle .223 Wylde 20 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard Vortex Flash Hider Black

Rock River Arms Completed Upper Receiver Coyote Rifle .223 Wylde 20 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard Vortex Flash Hider Black. 223 Wylde Completed Upper was created to function as the ideally suited product for anybody trying... ... more

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider. 223 Wylde Completed Upper then you've found yourself in the absolute right spot.. These AR15 Upper... ... more

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider. 223 Wylde Completed Upper then you've found yourself in the absolute right spot.. These AR15 Upper... ... more

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider. 223 Wylde Completed Upper then you've found yourself in the absolute right spot.. These AR15 Upper... ... more

Rock River Arms Completed Upper Receiver X-1 .223 Wylde 18 Inch Barrel 1-8 Twist 1/2-28 Threat Free-Float Handguard Brake Black XAR0700B.V1

Rock River Arms Completed Upper Receiver X-1 .223 Wylde 18 Inch Barrel 1-8 Twist 1/2-28 Threat Free-Float Handguard Brake Black XAR0700B.V1. 223 Wylde Completed Upper was developed to function as the ideal item for anyone in need of a high quality... ... more

Rock River Arms Completed Upper Receiver X-1 .223 Wylde 18 Inch Barrel 1-8 Twist 1/2-28 Threat Free-Float Handguard Brake Tan XAR0700T.V1

Rock River Arms Completed Upper Receiver X-1 .223 Wylde 18 Inch Barrel 1-8 Twist 1/2-28 Threat Free-Float Handguard Brake Tan XAR0700T.V1. 223 Wylde Completed Upper was developed to function as the ideal item for anyone in need of a high quality... ... more

Rock River Arms Completed Upper Receiver Predator Pursuit .223 Wylde 20 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0567

Rock River Arms Completed Upper Receiver Predator Pursuit .223 Wylde 20 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0567. 223 Wylde Completed Upper was developed in order to be the ideally suited item for any person looking... ... more