Hughes Ballistics 5.56 AR-15 PrimusTM Profile Barrel 16in Mid-Length 1-7 Twist 1/2x28 Thread Black Nitride HB15PRIMUS16556

Faxon Firearms Ar-15 6mm Arc Barrels Heavy Profile - 6mm Arc Barrel 16in 1-8 5r Mid-Length 5/8-24 Bl

To fully take advantage of the performance of the 6mm ARC cartridge Brownells has teamed up with Faxon to offer these AR-15 6mm ARC barrels. Made from 416R stainless steel and finished with a black Nitride finish, these come in a heavy profile with a... ... more

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 13in 1-7 Twist 1/2x28 Thread Black 556N13CUA

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 13in 1-7 Twist 1/2x28 Thread Black 556N13CUA. 56 NATO and built around a 1/7 twist barrel. 7-sided M-LOK Handguard and 7075 Aluminum Upper Receiver. These uppers have a pistol-length gas system that... ... more

Rosco Manufacturing Bloodline 5.56 NATO Barrel M4 16in Mid Length 1-7 Twist 1/2x28 Thread Nitride Black BL-16-GVT-556-7-M

Rosco Manufacturing Bloodline 5.56 NATO Barrel M4 16in Mid Length 1-7 Twist 1/2x28 Thread Nitride Black BL-16-GVT-556-7-M. The longer gas system allows for a smoother gas curve which leads to managed dwell times. This combo creates a great balance of... ... 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

Hughes Ballistics 5.56 AR-15 USGI Profile Barrel 16in Government Mid-length Gas System 1-7 Twist 1/2x28 Thread Black Nitride HB15USGI16556

Hughes Ballistics 5.56 AR-15 USGI Profile Barrel 16in Government Mid-length Gas System 1-7 Twist 1/2x28 Thread Black Nitride HB15USGI16556. 56 chambered 16 inch USGI Profile mid-length Barrel is machined from 4150 Chrome Moly Vanadium steel with a... ... more

Ballistic Advantage Performance Barrel AR-15 5.56 12.9in Hanson Contour 1/7 Twist 1/2x28 Thread QPQ Corrosion Resistant Black BABL556033F

Ballistic Advantage Performance Barrel AR-15 5.56 12.9in Hanson Contour 1/7 Twist 1/2x28 Thread QPQ Corrosion Resistant Black BABL556033F. 56 Barrel. These Rifle Barrels by Ballistic Advantage are constructed from tough 4150 Chrome Moly Vanadium steel... ... more

Rosco Manufacturing Bloodline 5.56 NATO Barrel M4 14.5in Mid Length 1-7 Twist 1/2x28 Thread Nitride Black BL-145-GVT-556-7-M

Rosco Manufacturing Bloodline 5.56 NATO Barrel M4 14.5in Mid Length 1-7 Twist 1/2x28 Thread Nitride Black BL-145-GVT-556-7-M. The longer gas system allows for a smoother gas curve which leads to managed dwell times. This combo creates a great balance... ... more

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 16in 1-7 Twist 1/2x28 Thread Black 556N16CUA

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 16in 1-7 Twist 1/2x28 Thread Black 556N16CUA. 56 NATO and built around a 1/7 twist barrel. 7-sided M-LOK Handguard and 7075 Aluminum Upper Receiver. These uppers have a pistol-length gas system that... ... more

Ballistic Advantage Performance Barrel AR-15 5.56 13.9in Hanson Contour 1/7 Twist 1/2x28 Thread QPQ Corrosion Resistant Black BABL556037F

Ballistic Advantage Performance Barrel AR-15 5.56 13.9in Hanson Contour 1/7 Twist 1/2x28 Thread QPQ Corrosion Resistant Black BABL556037F. 56 Barrel. These Rifle Barrels by Ballistic Advantage are constructed from tough 4150 Chrome Moly Vanadium steel... ... more

Jacob Grey Firearms Threaded Rifle Barrel AR Platform AR-15 5.56 NATO/.223 Remington 10.5in Pistol Length 1-7 Twist 1/2x28 Thread Black 556N105B

Jacob Grey Firearms Threaded Rifle Barrel AR Platform AR-15 5.56 NATO/.223 Remington 10.5in Pistol Length 1-7 Twist 1/2x28 Thread Black 556N105B. Depending on what your intended purpose for a particular rifle will be you might want a lightweight short... ... more

Stag Arms AR-15 Retro Right Hand Upper Receiver 5.56 NATO 20in Barrel NJ Compliant GOV Profile 1-7 Twist 1/2 x 28 Thread Compensator Black

Stag Arms AR-15 Retro Right Hand Upper Receiver 5.56 NATO 20in Barrel NJ Compliant GOV Profile 1-7 Twist 1/2 x 28 Thread Compensator Black. Made to mil-spec standards with a removable A3 carry handle and a rifle length thermoplastic handguard with... ... more

Rainier Arms Select 5.56 NATO Barrel 16in 1-7 Twist 1/2x28 Black Medium RAB-SEL-556-16-M-NF-BLK

Rainier Arms Select 5.56 NATO Barrel 16in 1-7 Twist 1/2x28 Black Medium RAB-SEL-556-16-M-NF-BLK. They are able to reach our goal by sourcing a very high end barrel blank at an affordable price. They start off using a high precision match blank in 1:7... ... more

Diamondback Barrels AR-15 5.56 NATO Barrel Mid-Length 16in Barrel 1-8 Twist Rate 1/2x28 TPI 556M16M50B8

Diamondback Barrels AR-15 5.56 NATO Barrel Mid-Length 16in Barrel 1-8 Twist Rate 1/2x28 TPI 556M16M50B8. 56 NATO AR-15 Carbine Barrel is machined in house on state-of-the-art CNC machines and are thoroughly inspected at multiple stages of the build... ... more

Sons of Liberty Gun Works Threaded Barrel 5.56 Chamber 16in Combat V2 Profile Mid Gas 1/2x28 1-7 Twist QPQ Black 16COMBATV2-CHF-556

Sons of Liberty Gun Works Threaded Barrel 5.56 Chamber 16in Combat V2 Profile Mid Gas 1/2x28 1-7 Twist QPQ Black 16COMBATV2-CHF-556. With the significantly increased chamber support our V2 contour barrels are better suited for modern configurations... ... more

Rosco Manufacturing Bloodline 5.56 NATO Heavy Barrel 16in Carbine 1-7 Twist 1/2x28 Thread Nitride Black BL-16-HB-556-7-C

Rosco Manufacturing Bloodline 5.56 NATO Heavy Barrel 16in Carbine 1-7 Twist 1/2x28 Thread Nitride Black BL-16-HB-556-7-C. 56 (NATO) barrels are designed to meet the modern day carbine shooters requirements. Rosco Manufacturing are a long way from our... ... more

XTS Complete Upper Receiver w/o BCG w/ Ce Rail AR-15 .223/5.56 19.5in 10.5in Barrel Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride

XTS Complete Upper Receiver w/o BCG w/ Ce Rail AR-15 .223/5.56 19.5in 10.5in Barrel Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With an... ... more

Stag Arms AR-15 Tactical Upper Receiver .300 AAC Blackout 16in Barrel Hanson Profile 1-7 Twist 1/2x28 Left Hand VG6 Delta FDE STAG15113002

Stag Arms AR-15 Tactical Upper Receiver .300 AAC Blackout 16in Barrel Hanson Profile 1-7 Twist 1/2x28 Left Hand VG6 Delta FDE STAG15113002. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics and... ... more

Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 NATO 14.5 in Barrel M4 Profile 1-7 Twist 1/2x28 Thread 12 in ATLAS R-ONE M-LOK Handguard

Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 NATO 14.5 in Barrel M4 Profile 1-7 Twist 1/2x28 Thread 12 in ATLAS R-ONE M-LOK Handguard. Our proprietary ATLAS attachment system is a durable and dependable mounting platform maintaining a slim... ... more

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 10.5in 1-7 Twist 1/2x28 Thread Black 556N105CUA

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 10.5in 1-7 Twist 1/2x28 Thread Black 556N105CUA. 56 NATO and built around a 1/7 twist barrel. 7-sided M-LOK Handguard and 7075 Aluminum Upper Receiver. These uppers have a pistol-length gas system... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With an... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Red

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Red. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With an... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With an... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish OD

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish OD. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With an... ... more

Sons of Liberty Gun Works Threaded Barrel 5.56 Chamber 11.5in Combat V2 Profile Carbine Gas 1/2x28 1-7 Twist QPQ Black 11.5COMBATV2-CHF-556

Sons of Liberty Gun Works Threaded Barrel 5.56 Chamber 11.5in Combat V2 Profile Carbine Gas 1/2x28 1-7 Twist QPQ Black 11.5COMBATV2-CHF-556. With the significantly increased chamber support our V2 contour barrels are better suited for modern... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Silver XTS-CU-7SL

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Silver XTS-CU-7SL. 56 16.5in upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56.... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Red XTS-CU-7RD

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Red XTS-CU-7RD. 56 16.5in upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56.... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Blue

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Blue. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With... ... more

Sons of Liberty Gun Works Threaded Barrel 5.56 Chamber 12.5in Combat V2 Profile Carbine Gas 1/2x28 1-7 Twist QPQ Black 12.5COMBATV2-CHF-556

Sons of Liberty Gun Works Threaded Barrel 5.56 Chamber 12.5in Combat V2 Profile Carbine Gas 1/2x28 1-7 Twist QPQ Black 12.5COMBATV2-CHF-556. With the significantly increased chamber support our V2 contour barrels are better suited for modern... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Bronze XTS-CU-7BR

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Bronze XTS-CU-7BR. 56 16.5in upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56.... ... more

Sons of Liberty Gun Works Threaded Barrel 5.56 Chamber 13.7in Combat V2 Profile Mid Gas 1/2x28 1-7 Twist QPQ Black 13.7COMBATV2-CHF-556

Sons of Liberty Gun Works Threaded Barrel 5.56 Chamber 13.7in Combat V2 Profile Mid Gas 1/2x28 1-7 Twist QPQ Black 13.7COMBATV2-CHF-556. With the significantly increased chamber support our V2 contour barrels are better suited for modern configurations... ... more

Sons of Liberty Gun Works Threaded Barrel 5.56 Chamber 14.5in Combat V2 Profile Mid Gas 1/2x28 1-7 Twist QPQ Black 14.5COMBATV2-CHF-556

Sons of Liberty Gun Works Threaded Barrel 5.56 Chamber 14.5in Combat V2 Profile Mid Gas 1/2x28 1-7 Twist QPQ Black 14.5COMBATV2-CHF-556. With the significantly increased chamber support our V2 contour barrels are better suited for modern configurations... ... more

Stag Arms AR-15 Tactical Upper Receiver 5.56x45mm NATO 16in Barrel Maryland Compliant Hanson Profile 1-7 Twist 1/2x28 Left Hand VG6 Delta Nitride

Stag Arms AR-15 Tactical Upper Receiver 5.56x45mm NATO 16in Barrel Maryland Compliant Hanson Profile 1-7 Twist 1/2x28 Left Hand VG6 Delta Nitride. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Blue XTS-CU-7BL

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Blue XTS-CU-7BL. 56 16.5in upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56.... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Purple XTS-CU-7PP

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Purple XTS-CU-7PP. 56 16.5in upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56.... ... more

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

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish OD Green. 56 16.5in upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. These... ... more

Rosco Manufacturing Bloodline 5.56 NATO Barrel M4 10.5in Carbine 1-7 Twist 1/2x28 Thread Nitride Black BL-105-M4-556-7-C

Rosco Manufacturing Bloodline 5.56 NATO Barrel M4 10.5in Carbine 1-7 Twist 1/2x28 Thread Nitride Black BL-105-M4-556-7-C. 56 (NATO) barrels are designed to meet the modern day carbine shooters requirements. We are a long way from our daddy's "Sporter"... ... more