Alexander Arms AR15 Stripped Rifle Upper 6.5 Grendel 18 in Barrel Carbine Length 1-7.5 Twist 5/8x24 Thread Black KIT-65-18

Alexander Arms AR15 Standard Rifle Upper .17HMR 18 in Barrel Carbine Length 1-9 Twist 1/2x28 Thread Tacstar Carbon Fiber Handguard A2 Flash hider

Alexander Arms AR15 Standard Rifle Upper .17HMR 18 in Barrel Carbine Length 1-9 Twist 1/2x28 Thread Tacstar Carbon Fiber Handguard A2 Flash hider. 17HMR feature steel construction and a forge-turned barrel to produce high-end performance and accuracy.... ... more

Alexander Arms DIY Upper Kit AR-15 6.5mm Grendel 16 inch Barrel Mid Length 1-8 Twist 5/8x24 Thread Matte Black Melonite KIT-65-16-10RD

Alexander Arms DIY Upper Kit AR-15 6.5mm Grendel 16 inch Barrel Mid Length 1-8 Twist 5/8x24 Thread Matte Black Melonite KIT-65-16-10RD. Specifications for Alexander Arms AR-15 6.5mm Grendel DIY Upper Kit: Manufacturer: Alexander Arms Cartridge: 6.5mm... ... more

Alexander Arms Tactical Upper Receiver AR-15 6.5mm Grendel 18 inch Barrel 1-8 Twist 5/8x24 Thread A2 Flash Hider Black Anodized UTA-65-10RD

Alexander Arms Tactical Upper Receiver AR-15 6.5mm Grendel 18 inch Barrel 1-8 Twist 5/8x24 Thread A2 Flash Hider Black Anodized UTA-65-10RD. Specifications for Alexander Arms AR-15 6.5mm Grendel Tactical Upper Receiver: Manufacturer: Alexander Arms... ... more

BSF Barrels AR Carbon Fiber Barrel AR-15 6.5mm Grendel 12 in Carbine Length 1-8 Twist Fluted 5/8x24 Thread .875 OD Gray FC1512G001

BSF Barrels AR Carbon Fiber Barrel AR-15 6.5mm Grendel 12 in Carbine Length 1-8 Twist Fluted 5/8x24 Thread .875 OD Gray FC1512G001. 5 Grendel Rifle Barrel w/1:8 Twist is an excellent way to make sure you have a lightweight and accurate addition to your... ... more

Rock River Arms Completed Upper Receiver Coyote Carbine .300 AAC Blackout 16 Inch Barrel 1-8 Twist 5/8-24 Thread Free-Float Handguard Vortex Flash

Rock River Arms Completed Upper Receiver Coyote Carbine .300 AAC Blackout 16 Inch Barrel 1-8 Twist 5/8-24 Thread Free-Float Handguard Vortex Flash. 300 AAC Blackout Completed Upper then you've showed up at the ideal spot.. These AR15 Upper Receivers... ... more

POF USA Revolution Piston Upper Receiver 308 WIN 18.5in Barrel Rifle Length 1-10 Twist 5/8x24 14.5in M-Lok Rail Triple Port Muzzle Break Black 1818

POF USA Revolution Piston Upper Receiver 308 WIN 18.5in Barrel Rifle Length 1-10 Twist 5/8x24 14.5in M-Lok Rail Triple Port Muzzle Break Black 1818. 308 that handles like a 5.56 because its the same size and weight as one. This isnt a stripped down... ... more

POF USA Revolution Piston Upper Receiver 308 WIN 18.5in Barrel Rifle Length 1-10 Twist 5/8x24 14.5in M-Lok Rail Triple Port Muzzle Break Burnt Bronze

POF USA Revolution Piston Upper Receiver 308 WIN 18.5in Barrel Rifle Length 1-10 Twist 5/8x24 14.5in M-Lok Rail Triple Port Muzzle Break Burnt Bronze. 308 that handles like a 5.56 because its the same size and weight as one. This isnt a stripped down... ... more

Ballistic Advantage Premium Series Threaded Barrel 6.5mm Grendel II 12.5in Hanson Carbine 1-8 Twist 5/8x24 Thread Bead Blasted Stainless Steel

Ballistic Advantage Premium Series Threaded Barrel 6.5mm Grendel II 12.5in Hanson Carbine 1-8 Twist 5/8x24 Thread Bead Blasted Stainless Steel. 5 Grendel AR Rifle Threaded Barrel. These AR15 Barrels by Ballistic Advantage boast a shoulder-less design... ... more

Rock River Arms Completed Upper Receiver Elite Carbine A4 .223/5.56mm 16 Inch Barrel 1-9 Twist Mid-Length Profile 1/2-28 Thread A2 Flash Hider Black

Rock River Arms Completed Upper Receiver Elite Carbine A4 .223/5.56mm 16 Inch Barrel 1-9 Twist Mid-Length Profile 1/2-28 Thread A2 Flash Hider Black. 223/5.56mm Completed Upper then you have arrived at the right spot.. These AR15 Upper Receivers... ... more

Aagil Arms Complete AR-15 .223 Wylde Upper Assembly 16in Stainless Steel Length Carbine 1-8 Twist w/ 15in M-Lok Anodized Black Medium AA-C16S223C8K15

Aagil Arms Complete AR-15 .223 Wylde Upper Assembly 16in Stainless Steel Length Carbine 1-8 Twist w/ 15in M-Lok Anodized Black Medium AA-C16S223C8K15. This upper assembly is built on a robust steel 223 Wylde profile 16in barrel that features a... ... more

Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 10.5in Stainless Steel Length Carbine 1-8 Twist w/ 10in MLOK Anodized Black Medium AA-C10S556C7K10

Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 10.5in Stainless Steel Length Carbine 1-8 Twist w/ 10in MLOK Anodized Black Medium AA-C10S556C7K10. 5.56 NATO. 10.5" Stainless Steel Barrel. Carbine Gas System. 10" M-Lok Handguard. Charging Handle and... ... more

Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 16in Barrel Length Carbine 1-8 Twist w/ 15in Key Mod Anodized Black Medium AA-C16556C7D15

Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 16in Barrel Length Carbine 1-8 Twist w/ 15in Key Mod Anodized Black Medium AA-C16556C7D15. Built upon the classic AR-15 platform these complete upper assemblies are machined to precision and include... ... more

Bilson Arms Pump Style Forward Charging Upper Assembly BA-15FC 16 inch 1-8 Twist Cerakote Sniper Green & Grey A2UFC491001

Bilson Arms Pump Style Forward Charging Upper Assembly BA-15FC 16 inch 1-8 Twist Cerakote Sniper Green & Grey A2UFC491001. 223 Remington 5.56mm Overall Length: 24.5 in Barrel Profile: Standard Gas System Length: Carbine Length Threads per Inch: 1/2x28... ... more

Bilson Arms Pump Style Forward Charging Upper Assembly 6mmarcfc-ua 18 inch 1-7 Twist Cerakote Sniper Green & Grey A3UFS491001 416R- SS

Bilson Arms Pump Style Forward Charging Upper Assembly 6mmarcfc-ua 18 inch 1-7 Twist Cerakote Sniper Green & Grey A3UFS491001 416R- SS. 223 Remington 5.56mm Overall Length: 24.5 in Barrel Profile: Standard Gas System Length: Carbine Length Threads per... ... more

Ghost Firearms Complete Upper Receiver Rifle Lower Parts Kit 9mm 16 inch Carbine Length 4150 Chrome Moly Steel Barrel 1-10 Twist 11 inch M-LOK Rail A2

Ghost Firearms Complete Upper Receiver Rifle Lower Parts Kit 9mm 16 inch Carbine Length 4150 Chrome Moly Steel Barrel 1-10 Twist 11 inch M-LOK Rail A2. Using some of the most reliable materials available these AR15 Lower Parts from the industry experts... ... more

Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 10.5in Barrel Length Carbine 1-8 Twist w/ 10in MLOK Anodized Black Medium AA-C10556C7K10

Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 10.5in Barrel Length Carbine 1-8 Twist w/ 10in MLOK Anodized Black Medium AA-C10556C7K10. The complete upper assemblies come with our military spec Carbine gas system. The complete assemblies come with... ... more

Rock River Arms Completed Upper Receiver R3 .223/5.56mm 18 Inch Barrel Mid-Length Plofile 1-8 Twist 1/2-28 Thread M-LOK Handguard Brake Black

Rock River Arms Completed Upper Receiver R3 .223/5.56mm 18 Inch Barrel Mid-Length Plofile 1-8 Twist 1/2-28 Thread M-LOK Handguard Brake Black. 223 Wylde Completed Upper. These AR15 Upper Receivers from the professional product specialists at Rock River... ... more

Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 16in Stainless Steel Length Carbine 1-8 Twist w/ 15in Key Mod Anodized Black Medium AA-C16S556C8D15

Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 16in Stainless Steel Length Carbine 1-8 Twist w/ 15in Key Mod Anodized Black Medium AA-C16S556C8D15. 56 NATO Upper Assembly 16in Stainless Steel Length Carbine w/ 15in Key Mod. These AR15 Upper... ... more

Aagil Arms Complete AR-15 .223 Wylde Upper Assembly 10.5in Stainless Steel Length Carbine 1-8 Twist w/ 10in MLOK Anodized Black Medium AA-C10S223C8K10

Aagil Arms Complete AR-15 .223 Wylde Upper Assembly 10.5in Stainless Steel Length Carbine 1-8 Twist w/ 10in MLOK Anodized Black Medium AA-C10S223C8K10. Built around excellent components such as T.I.M. 's stainless steel 10.5in barrels Aagil's new... ... more

Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 16in Stainless Steel Length Carbine 1-8 Twist w/ 15in MLOK Anodized Black Medium AA-C16S556C8K15

Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 16in Stainless Steel Length Carbine 1-8 Twist w/ 15in MLOK Anodized Black Medium AA-C16S556C8K15. 5.56 NATO. 16" Stainless Steel Barrel. Carbine Gas System. 15" M-Lok Handguard. Charging Handle and... ... more

Airborne Arms Hyperion Series Barrel AR-15 18in Rifle Length .750 Gas Block 6.5mm Grendel 5/8x24 Thread 1-8 Twist 416R Steel Silver Medium

Airborne Arms Hyperion Series Barrel AR-15 18in Rifle Length .750 Gas Block 6.5mm Grendel 5/8x24 Thread 1-8 Twist 416R Steel Silver Medium. 5mm Grendel AR-15 Stainless Steel Barrel. Airborne Arms built these Rifle Barrels to last through multiple uses... ... more

LaRue Tactical Stealth A3Threaded Barrel AR Platform AR-15 16in 5.56mm Mid Length 1/8 Twist 1/2x28 Thread Black LT15-6S-M-223-8-16-Y-1M-A3

LaRue Tactical Stealth A3Threaded Barrel AR Platform AR-15 16in 5.56mm Mid Length 1/8 Twist 1/2x28 Thread Black LT15-6S-M-223-8-16-Y-1M-A3. Stealth Uppers are considered by many to be the finest improvement that can be made to a stock AR15 Rifle.... ... more

Aagil Arms Complete AR-15 .223 Wylde Upper Assembly 10.5in Barrel Length Carbine 1-7 Twist w/ 10in MLOK Anodized Black Medium AA-C10223C7K10

Aagil Arms Complete AR-15 .223 Wylde Upper Assembly 10.5in Barrel Length Carbine 1-7 Twist w/ 10in MLOK Anodized Black Medium AA-C10223C7K10. Now you can have your .223 rifle assembled with the Aagil Arms complete upper assembly including an A2... ... more