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

Aero Precision M4e1 Assembled Upper Receiver 18" 5.56 Rifle Length - M4e1 5.56mm Assem Uppr Rcvr Gov

The M4E1 5.56mm 18" Rifle Upper Receiver adds two important benefits to Aero Precision's M4E1 carbine upper. First, the longer 18" barrel imparts extra velocity to the bullet with a very small addition to the rifle's OAL. Second, the longer... ... more

Aero Precision M4e1 5.56mm Assembled Upper Receiver W/Gen-2 Handguard & Fsb - M4e1 5.56 Assm Uppr Rc

Aero Precision's M4E1 5.56mm 10.5" Carbine Upper Receiver comes fully assembled, lacking only a bolt/carrier group and charging handle - the two most popular components for customization. At its heart is Aero's forged M4E1 receiver that combines the... ... more

Aero Precision M4e1 5.56 Assembled Upper Receiver Carbine W/G2 Handguard - M4e1 5.56 Nato Assem Uppr

Aero Precision's M4E1 5.56mm 16" Carbine Upper Receiver comes fully assembled, minus only the bolt/carrier group and charging handle - the two components any AR-15 fan with even a little urge to customize wants to replace anyway. Aero's M4E1... ... 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 16in 5.56 M4 Carbine Barrel EM-15 HG Gen 2 FDE Cerakote APAR640252M6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-15 HG Gen 2 FDE Cerakote APAR640252M6. 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 .300 Barrel EQ-7 HG No BCG/Charging Handle Gen 2 Anodized Black 8in APAR600211Q1

Aero Precision Complete Upper Receiver M4E1 .300 Barrel EQ-7 HG No BCG/Charging Handle Gen 2 Anodized Black 8in APAR600211Q1. 300 Blackout Barrels are equipped with Chrome Moly Vanadium barrels. Along with solid fit and finish these AR15 Upper... ... 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 Complete Upper Receiver M4E1 10.5in 5.56 Barrel w/ FSB EM-7 HG Gen 2 FDE Cerakote APAR640212M3

Aero Precision Complete Upper Receiver M4E1 10.5in 5.56 Barrel w/ FSB EM-7 HG Gen 2 FDE Cerakote APAR640212M3. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip and visual appeal and a new profile... ... more

Aero Precision Complete Upper Receiver M4E1 .300 Barrel EM-7 HG No BCG/Charging Handle Gen 2 Anodized Black 8in APAR600211M1

Aero Precision Complete Upper Receiver M4E1 .300 Barrel EM-7 HG No BCG/Charging Handle Gen 2 Anodized Black 8in APAR600211M1. 300 Blackout Barrels are equipped with Chrome Moly Vanadium barrels. Along with solid fit and finish these AR15 Upper... ... 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 Complete Upper Receiver M4E1 10.5in 5.56 Barrel w/ FSB EQ-7 HG Gen 2 FDE Cerakote APAR640212Q3

Aero Precision Complete Upper Receiver M4E1 10.5in 5.56 Barrel w/ FSB EQ-7 HG Gen 2 FDE Cerakote APAR640212Q3. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip and visual appeal and a new profile... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-15 Gen 2 HG FDE Cerakote APAR640252Q6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-15 Gen 2 HG FDE Cerakote APAR640252Q6. 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 Complete Upper Receiver M4E1 .223 Wylde Mid Barrel EQ-15 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600251Q9

Aero Precision Complete Upper Receiver M4E1 .223 Wylde Mid Barrel EQ-15 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600251Q9. These AR15 Upper Receivers from the trendsetters at Aero Precision comes fully assembled so that you can lock... ... more

Aero Precision M4E1 Complete Upper Receiver 5.56 Mid Barrel EM-12 HG No BCG/Charging Handle Anodized Black 14.5in APAR600231M5

Aero Precision M4E1 Complete Upper Receiver 5.56 Mid Barrel EM-12 HG No BCG/Charging Handle Anodized Black 14.5in APAR600231M5. 56 Mid Barrel EM-12 HG. Formulated by using some of the most extremely robust and dependable materials in existence these... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-12 HG Gen 2 FDE Cerakote APAR640232M6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-12 HG Gen 2 FDE Cerakote APAR640232M6. 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 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-E 18in .223 Wylde Fluted Barrel EM-15 Handguard Gen 2 Anodized Black APAR640232M51

Aero Precision Complete Upper Receiver M4E1-E 18in .223 Wylde Fluted Barrel EM-15 Handguard Gen 2 Anodized Black APAR640232M51. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip and visual appeal... ... more

Aero Precision Complete Upper Receiver M4E1-T .223 16in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M50

Aero Precision Complete Upper Receiver M4E1-T .223 16in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M50. The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to your... ... more

Aero Precision M4E1-T Complete Upper Receiver Threaded 5.56x45mm Mid Pencil 14.7in Barrel ATLAS S-ONE 12in Handguard M-LOK Anodized Black

Aero Precision M4E1-T Complete Upper Receiver Threaded 5.56x45mm Mid Pencil 14.7in Barrel ATLAS S-ONE 12in Handguard M-LOK Anodized Black. 56 Mid Pencil Barrel w/ ATLAS S-ONE Handguard Complete Upper Receiver. These AR15 Upper Receivers built by... ... 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 20in 5.56 Rifle Length Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth APAR700315M48

Aero Precision Complete Upper Receiver M4E1-T 20in 5.56 Rifle Length Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth APAR700315M48. Aero Precision built these AR Handguards & Barrels with their ATLAS S-ONE Handguard and 20in 5.56... ... more

Aero Precision M4E1-T Complete Upper Receiver Threaded 5.56x45mm Mid Pencil 14.7in Barrel ATLAS S-ONE 12in Handguard M-LOK Cerakote Flat Dark Earth

Aero Precision M4E1-T Complete Upper Receiver Threaded 5.56x45mm Mid Pencil 14.7in Barrel ATLAS S-ONE 12in Handguard M-LOK Cerakote Flat Dark Earth. 56 Mid Pencil Barrel w/ ATLAS S-ONE Handguard Complete Upper Receiver. These AR15 Upper Receivers... ... more

Aero Precision Complete Upper Receiver M4E1-T 8in .300 Blackout BRL 7in M-LOK ATLAS S-ONE HG Anodized Black APAR700301M1

Aero Precision Complete Upper Receiver M4E1-T 8in .300 Blackout BRL 7in M-LOK ATLAS S-ONE HG Anodized Black APAR700301M1. 300 Blackout Complete Upper Receiver. Each of these AR15 Upper Receivers designed by Aero Precision contain an ATLAS S-One... ... more

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Mid Barrel 12in M-LOK ATLAS S-ONE Handguard Flat Dark Earth APAR700314M5

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Mid Barrel 12in M-LOK ATLAS S-ONE Handguard Flat Dark Earth APAR700314M5. 5in 5.56 Mid-Length w/ ATLAS S-ONE Handguard Complete Upper Receiver with Flash Hider. Aero Precision designed these... ... 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-E 16in .223 Wylde Fluted Barrel EM-15 Handguard Gen 2 Anodized Black APAR640232M50

Aero Precision Complete Upper Receiver M4E1-E 16in .223 Wylde Fluted Barrel EM-15 Handguard Gen 2 Anodized Black APAR640232M50. Specifications for Aero Precision M4E1 Enhanced 16in .223 Wylde Fluted Complete Upper Receiver with Flash Hider:... ... more

Aero Precision Complete Upper Receiver M4E1-T .223 18in Wylde Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M42

Aero Precision Complete Upper Receiver M4E1-T .223 18in Wylde Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M42. The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to your... ... more

Aero Precision Complete Upper Receiver M4E1-T .300 16in Blackout Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700304M14

Aero Precision Complete Upper Receiver M4E1-T .300 16in Blackout Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700304M14. 300 Blackout w/ ATLAS S-ONE Handguard Complete Upper Receiver. Aero Precision built these AR15 Upper Receivers... ... more

Aero Precision Complete Upper Receiver M4E1-T .223 18in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M51

Aero Precision Complete Upper Receiver M4E1-T .223 18in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M51. 223 Wylde fluted barrel complete with an ATLAS handguard The upper receiver is enhanced with new enhanced... ... 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 Carbine Length 16 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider FDE Cerakote

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