Aero Precision 5.56 CMV M4 Barrel 18in Rifle Length 1-7 Twist 1/2-28 Threaded Anodized Black APRH100159

Brownells Ar-15 5.56mm Nato Mk 12 Profile - Barrel 5.56mm Nato 18 1-7 Rifle Length Black

The MK12 platform received fame for its use with US Special Operations groups as a semi-automatic precision rifle, and one of the essential elements of the platform is now offered as the Brownells 5.56 NATO MK12 Profile AR-15 barrel. The Brownells... ... more

Nemo Ar-15 Barrel .224 Valkyrie - Ar-15 20 Barrel Rifle Length 1/2-28 1-7 Black

Built for accuracy and longevity, NEMO barrels are turned, chambered, and threaded in house. Starting with premium blanks, NEMO has defined accuracy through precision machining that is done right in our shop. Caliber: .224 Valkyrie Length: 20 in 416... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-15 HG Gen 2 Anodized Black APAR640251Q6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-15 HG Gen 2 Anodized Black APAR640251Q6. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more... ... more

Aero Precision M4E1 Complete Upper Receiver AR-15 18 in Rifle Length Barrel 15 in Quad Rail Handguard No BCH/CH Anodized Black APAR640251Q8

Aero Precision M4E1 Complete Upper Receiver AR-15 18 in Rifle Length Barrel 15 in Quad Rail Handguard No BCH/CH Anodized Black APAR640251Q8. These AR15 Upper Receivers from Aero Precision have an enhanced milling design for grip and visual appeal.... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-15 HG Gen 2 Anodized Black APAR640251M6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-15 HG Gen 2 Anodized Black APAR640251M6. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more... ... more

Aero Precision M5E1 Complete Upper 18in 6.5 CM SS Mid-Length Barrel EM-15 HG Gen 2 Anodized Black APAR308554M44

Aero Precision M5E1 Complete Upper 18in 6.5 CM SS Mid-Length Barrel EM-15 HG Gen 2 Anodized Black APAR308554M44. Gen 2 Enhanced Handguard of choice. 18" 6.5 Creedmoor Stainless Steel Barrel. Low Profile Gas Block and Mid Length Gas Tube. Product... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-12 HG Gen 2 Anodized Black APAR640231Q6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-12 HG Gen 2 Anodized Black APAR640231Q6. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more... ... more

Aero Precision M4E1 Complete Upper Receiver AR-15 18 in Rifle Length Barrel 15 in M-LOK Handguard No BCH/CH Anodized Black APAR640251M8

Aero Precision M4E1 Complete Upper Receiver AR-15 18 in Rifle Length Barrel 15 in M-LOK Handguard No BCH/CH Anodized Black APAR640251M8. These AR15 Upper Receivers from Aero Precision have an enhanced milling design for grip and visual appeal. In... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-12 HG Gen 2 Anodized Black APAR640231M6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-12 HG Gen 2 Anodized Black APAR640231M6. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more... ... more

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Carbine Length Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700304M32

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Carbine Length Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700304M32. The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to... ... more

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Mid Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700304M5

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Mid Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700304M5. 5in 5.56 Mid-Length w/ ATLAS S-ONE Handguard Complete Upper Receiver with Flash Hider. Aero Precision designed these... ... more

Aero Precision M4E1-E Complete Upper 14.5in 5.56 M4 Carbine Barrel EQ-12 Handguard Gen 2 Anodized Black APAR640231Q32

Aero Precision M4E1-E Complete Upper 14.5in 5.56 M4 Carbine Barrel EQ-12 Handguard Gen 2 Anodized Black APAR640231Q32. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip and visual appeal and a new... ... more

Aero Precision Complete Upper Receiver M4E1-T 20in 5.56 Rifle Length Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M48

Aero Precision Complete Upper Receiver M4E1-T 20in 5.56 Rifle Length Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M48. Aero Precision built these AR Handguards & Barrels with their ATLAS S-ONE Handguard and 20in 5.56 Rifle length... ... 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 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

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... ... 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... ... more

Aero Precision Threaded Upper Receiver M4E1 5.56 11.5 inch Barrel 9 inch M-LOK ATLAS R-ONE Handguard A2 Flash Hider Anodized Black APAR700702M29

Aero Precision Threaded Upper Receiver M4E1 5.56 11.5 inch Barrel 9 inch M-LOK ATLAS R-ONE Handguard A2 Flash Hider Anodized Black APAR700702M29. The R-ONE line of handguards are designed with size and weight in mind providing the perfect addition... ... more

Aero Precision M5E1 Complete Upper 18in .308 SS Rifle Barrel EM-15 Handguard Anodized W/BCG/CH Black APAR950000

Aero Precision M5E1 Complete Upper 18in .308 SS Rifle Barrel EM-15 Handguard Anodized W/BCG/CH Black APAR950000. 308 SS Complete Upper Receiver for unmatched performance and precision when taking down targets at the range. These AR15 Upper Receivers... ... more

Aero Precision Chrome Moly Vanadium Barrel AR-15 5.56 NATO 14.5 inch Government Profile Mid-Length 1-7 Twist 1/2x28 Thread Pinned VG6 Epsilon 556SL

Aero Precision Chrome Moly Vanadium Barrel AR-15 5.56 NATO 14.5 inch Government Profile Mid-Length 1-7 Twist 1/2x28 Thread Pinned VG6 Epsilon 556SL. 5in 5.56 Barrel is the perfect addition to your AR15 build. Crafted to mil- spec standards from 4150... ... more

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

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

Aero Precision Complete Upper Receiver M5E1 .308 Winchester 18in Fluted SS Barrel Rifle Length w/ Gen II EM-15 Handguard FDE APAR308556M69

Aero Precision Complete Upper Receiver M5E1 .308 Winchester 18in Fluted SS Barrel Rifle Length w/ Gen II EM-15 Handguard FDE APAR308556M69. 308 rifle upper assemblies you can buy. The Aero Precision AR 308 Upper includes an M4 length gas block 18"... ... more

Aero Precision Complete Upper Receiver M5E1 .308 Winchester 18in Fluted SS Barrel Rifle Length w/ Gen II EM-15 Handguard Anodized Black APAR308554M69

Aero Precision Complete Upper Receiver M5E1 .308 Winchester 18in Fluted SS Barrel Rifle Length w/ Gen II EM-15 Handguard Anodized Black APAR308554M69. 308 rifle upper assemblies you can buy. The Aero Precision AR 308 Upper includes an M4 length gas... ... more

Aero Precision Complete Upper Receiver M5 .308 Winchester 18in Fluted SS Barrel Rifle Length w/ ATLAS S-ONE 15in M-LOK Handguard Anodized Black

Aero Precision Complete Upper Receiver M5 .308 Winchester 18in Fluted SS Barrel Rifle Length w/ ATLAS S-ONE 15in M-LOK Handguard Anodized Black. 308 Winchester is a reliable foundation for your new build with an included M5 hand guard and barrel.... ... more

Aero Precision AR15 Complete Upper Receiver 16in 5.56 Mid-Length Barrel w/ Pinned Front Sight Base M4 Handguard Black APAR505631

Aero Precision AR15 Complete Upper Receiver 16in 5.56 Mid-Length Barrel w/ Pinned Front Sight Base M4 Handguard Black APAR505631. 56 NATO complete upper receiver from Aero Precision. These Mil-Spec AR15 Upper Receivers are built from tough 4150... ... more

Aero Precision AR15 Complete Upper Receiver 20in 5.56 Rifle Length Barrel w/ Pinned Front Sight Base & A2 Handguard Black APAR505611

Aero Precision AR15 Complete Upper Receiver 20in 5.56 Rifle Length Barrel w/ Pinned Front Sight Base & A2 Handguard Black APAR505611. 56 Barrel w/ Pinned FSB A2 Handguard and A2 Detachable Carry Handle. Specifications for Aero Precision AR15 20in... ... more

Aero Precision M5 Complete Upper Receiver w/Flash Hider 18in .308 Rifle Barrel w/ATLAS R-ONE 15in M-LOK Handguard Anodized Black APAR538705M25

Aero Precision M5 Complete Upper Receiver w/Flash Hider 18in .308 Rifle Barrel w/ATLAS R-ONE 15in M-LOK Handguard Anodized Black APAR538705M25. 308 CMV Complete Upper Receiver with Flash Hider w/ ATLAS R-ONE Handguard is the perfect choice for your... ... more

Aero Precision M5 Complete Upper Receiver 18in .308 Rifle Barrel w/ATLAS R-ONE 15in M-LOK Handguard Anodized Flat Dark Earth APAR538715M25

Aero Precision M5 Complete Upper Receiver 18in .308 Rifle Barrel w/ATLAS R-ONE 15in M-LOK Handguard Anodized Flat Dark Earth APAR538715M25. 308 CMV Complete Upper Receiver with Flash Hider w/ ATLAS R-ONE Handguard is the perfect choice for your next... ... more

Aero Precision M5 Complete Upper Receiver 20in .308 CMV Rifle Barrel w/ATLAS S-ONE 15in M-LOK Handguard Anodized Black APAR538105M27

Aero Precision M5 Complete Upper Receiver 20in .308 CMV Rifle Barrel w/ATLAS S-ONE 15in M-LOK Handguard Anodized Black APAR538105M27. To assist in your lightweight build this upper comes outfitted with an ATLAS S-ONE handguard that boasts a front... ... more

Aero Precision M5 Complete Upper Receiver 18in .308 Rifle Barrel w/ATLAS S-ONE 15in M-LOK Handguard Anodized Flat Dark Earth APAR538115M25

Aero Precision M5 Complete Upper Receiver 18in .308 Rifle Barrel w/ATLAS S-ONE 15in M-LOK Handguard Anodized Flat Dark Earth APAR538115M25. 308 CMV Complete Upper Receiver w/ ATLAS S-ONE Handguard. Forged from 7075 T6 aluminum these Aero Precision... ... more

Aero Precision M5 Complete Upper Receiver 18in .308 Rifle Barrel w/ATLAS S-ONE 15in M-LOK Handguard Anodized Black APAR538105M25

Aero Precision M5 Complete Upper Receiver 18in .308 Rifle Barrel w/ATLAS S-ONE 15in M-LOK Handguard Anodized Black APAR538105M25. 308 CMV Complete Upper Receiver w/ ATLAS S-ONE Handguard. Forged from 7075 T6 aluminum these Aero Precision AR15 Upper... ... more

Aero Precision M5 Complete Upper Receiver 18in .308 SS Rifle Barrel w/ATLAS R-ONE 15in M-LOK Handguard Anodized Black APAR538705M26

Aero Precision M5 Complete Upper Receiver 18in .308 SS Rifle Barrel w/ATLAS R-ONE 15in M-LOK Handguard Anodized Black APAR538705M26. Our proprietary ATLAS attachment system is a durable and dependable mounting platform maintaining a slim profile... ... 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 M5 Complete Upper Receiver 18in 6.5 Creedmoor SS Mid-Length Barrel w/ATLAS R-ONE 15in M-LOK Handguard Anodized Black APAR538705M44

Aero Precision M5 Complete Upper Receiver 18in 6.5 Creedmoor SS Mid-Length Barrel w/ATLAS R-ONE 15in M-LOK Handguard Anodized Black APAR538705M44. Our proprietary ATLAS attachment system is a durable and dependable mounting platform maintaining a... ... more

Aero Precision M5 Complete Upper Receiver 18in .308 SS Rifle Barrel w/ATLAS S-ONE 15in M-LOK Handguard Anodized Black APAR538105M26

Aero Precision M5 Complete Upper Receiver 18in .308 SS Rifle Barrel w/ATLAS S-ONE 15in M-LOK Handguard Anodized Black APAR538105M26. Our proprietary ATLAS attachment system is a durable and dependable mounting platform maintaining a slim profile... ... more

Aero Precision AR15 Complete Upper 16in 5.56 Mid-Length Barrel w/ Pinned FSB M4 Handguard Includes BCG & CH Anodized Black APAR505731

Aero Precision AR15 Complete Upper 16in 5.56 Mid-Length Barrel w/ Pinned FSB M4 Handguard Includes BCG & CH Anodized Black APAR505731. 56 NATO complete upper receiver from Aero Precision. These Mil-Spec AR15 Upper Receivers are built from tough 4150... ... more

Aero Precision AR15 Complete Upper 16in 5.56 M4 Carbine Barrel w/ Pinned FSB M4 Handguard Includes BCG & CH Anodized Black APAR505721

Aero Precision AR15 Complete Upper 16in 5.56 M4 Carbine Barrel w/ Pinned FSB M4 Handguard Includes BCG & CH Anodized Black APAR505721. 56 NATO complete upper receiver from Aero Precision. These Mil-Spec AR15 Upper Receivers are built from tough 4150... ... more