Aero Precision M4E1-T RM10.3 Complete Upper 5.56 x 45 12.5inch Government Carbine 1-7 Twist 1/2 x 28 Thread Anodized Black APAR700703M30

Aero Precision M4E1 Enhanced Complete Upper Receiver 5.56 NATO 14.5 in Barrel Government Profile 1-7 Twist 12 in M-LOK Handguard Pinned VG6 Epsilon

Aero Precision M4E1 Enhanced Complete Upper Receiver 5.56 NATO 14.5 in Barrel Government Profile 1-7 Twist 12 in M-LOK Handguard Pinned VG6 Epsilon. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip... ... 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

Stag Arms AR-15 Upper Right Hand Receiver 5.56 NATO 16in Barrel M4 Profile 1-7 Twist 1/2 x 28 Thread A2 Birdcage Flash Hider Black STAG15101111

Stag Arms AR-15 Upper Right Hand Receiver 5.56 NATO 16in Barrel M4 Profile 1-7 Twist 1/2 x 28 Thread A2 Birdcage Flash Hider Black STAG15101111. Made to mil-spec standards this upper satisfies the need for a standard GI carbine. Featuring a... ... 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 R-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 R-ONE M-LOK. Our proprietary ATLAS attachment system is a durable and dependable mounting platform maintaining a... ... more

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Carbine Length Barrel 12in M-LOK ATLAS S-ONE Handguard Flat Dark Earth APAR700314M32

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Carbine Length Barrel 12in M-LOK ATLAS S-ONE Handguard Flat Dark Earth APAR700314M32. The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to... ... more

Luth-AR A3 Complete Upper Receiver Assembled 11.5in Government Profile Barrel 5.56mm 1-7 Twist 1/2 x 28 Thread A2 Flash Hider w/ F Marked FSB and

Luth-AR A3 Complete Upper Receiver Assembled 11.5in Government Profile Barrel 5.56mm 1-7 Twist 1/2 x 28 Thread A2 Flash Hider w/ F Marked FSB and. 5? M4 SOCOM profile barrel with F Marked Front Sight Base 5.56mm made from 4150 CMV steel with a 1-7?... ... more

Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 11.5in Carbine Length 1-7 Twist 10.3in ATLAS R-ONE Handguard A2 Flash Hider Cerakote OD

Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 11.5in Carbine Length 1-7 Twist 10.3in ATLAS R-ONE Handguard A2 Flash Hider Cerakote OD. The R-ONE line of handguards are designed with size and weight in mind providing the perfect addition... ... more

Aero Precision Complete Upper M4E1-E 5.56 20in Rifle Barrel 1/7 Twist EQ15 Black APAR640251M48

Aero Precision Complete Upper M4E1-E 5.56 20in Rifle Barrel 1/7 Twist EQ15 Black APAR640251M48. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip and visual appeal and a new profile for the... ... more

Aero Precision Complete Upper M4E1-E 5.56 20in Rifle Barrel 1/7 Twist EQ15 Cerakote Black APAR640251Q48

Aero Precision Complete Upper M4E1-E 5.56 20in Rifle Barrel 1/7 Twist EQ15 Cerakote Black APAR640251Q48. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip and visual appeal and a new profile for the... ... more

Aero Precision Complete Upper M4E1-E 5.56 20in Rifle Barrel 1/7 Twist EQ15 FDE APAR640252Q48

Aero Precision Complete Upper M4E1-E 5.56 20in Rifle Barrel 1/7 Twist EQ15 FDE APAR640252Q48. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip and visual appeal and a new profile for the picatinny... ... more

Stag Arms AR-15 Upper Right Hand Receiver 5.56 NATO 16in Barrel NJ Compliant M4 Profile 1-7 Twist 1/2 x 28 Thread Compensator Black STAG15101113

Stag Arms AR-15 Upper Right Hand Receiver 5.56 NATO 16in Barrel NJ Compliant M4 Profile 1-7 Twist 1/2 x 28 Thread Compensator Black STAG15101113. Made to mil-spec standards this upper satisfies the need for a standard GI carbine. Featuring a... ... more

Stag Arms AR-15 Upper Right Hand Receiver 5.56 NATO 16in Barrel Maryland Compliant HBAR Profile 1-7 Twist 1/2 x 28 Thread A2 Birdcage Flash Hider

Stag Arms AR-15 Upper Right Hand Receiver 5.56 NATO 16in Barrel Maryland Compliant HBAR Profile 1-7 Twist 1/2 x 28 Thread A2 Birdcage Flash Hider. Made to mil-spec standards this upper satisfies the need for a standard GI carbine. Featuring a... ... more

Stag Arms AR-15 Upper Left Hand Receiver 5.56 NATO 16in Barrel Maryland Compliant HBAR Profile 1-7 Twist 1/2 x 28 Thread A2 Birdcage Flash Hider Black

Stag Arms AR-15 Upper Left Hand Receiver 5.56 NATO 16in Barrel Maryland Compliant HBAR Profile 1-7 Twist 1/2 x 28 Thread A2 Birdcage Flash Hider Black. Made to mil-spec standards this upper satisfies the need for a standard GI carbine. Featuring a... ... more

Aero Precision Complete Upper Receiver M4E1 Threaded PRO 5.56 12.5in Barrel Gov Profile Mid-Length Gas System 1-7 Twist 1/2 x 28 Thread ATLAS R-ONE

Aero Precision Complete Upper Receiver M4E1 Threaded PRO 5.56 12.5in Barrel Gov Profile Mid-Length Gas System 1-7 Twist 1/2 x 28 Thread ATLAS R-ONE. 56 Cold Hammer Forged Barrel that is paired with our PRO 5.56 BCG. Included ATLAS R-ONE Handguard... ... more

Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 16in Mid-Length Barrel 1-7 Twist 15in ATLAS S-ONE Handguard A2 Flash Hider Cerakote OD Green

Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 16in Mid-Length Barrel 1-7 Twist 15in ATLAS S-ONE Handguard A2 Flash Hider Cerakote OD Green. 56 Mid Pencil Barrel w/ ATLAS S-ONE Handguard Complete Upper Receiver. These AR15 Upper Receivers... ... more

Aero Precision M4E1-T Complete Upper 14.5in 5.56 Carbine Length BRL 12in M-LOK AR15 ATLAS R-ONE HG FDE APAR700714M32

Aero Precision M4E1-T Complete Upper 14.5in 5.56 Carbine Length BRL 12in M-LOK AR15 ATLAS R-ONE HG FDE APAR700714M32. The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to your lightweight build.... ... more

Aero Precision M4E1-T Complete Upper 14.5in 5.56 Carbine Length BRL 12in M-LOK AR15 ATLAS R-ONE HG Anodized Black APAR700704M32

Aero Precision M4E1-T Complete Upper 14.5in 5.56 Carbine Length BRL 12in M-LOK AR15 ATLAS R-ONE HG Anodized Black APAR700704M32. The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to your... ... more

Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 11.5in Carbine Length 1-7 Twist 10.3in ATLAS S-ONE Handguard A2 Flash Hider Cerakote OD

Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 11.5in Carbine Length 1-7 Twist 10.3in ATLAS S-ONE Handguard A2 Flash Hider Cerakote OD. 5in 5.56 w/ ATLAS S-ONE w/ A2 Flash Hider Handguard Complete Upper Receiver. Each of these AR15 Upper... ... more

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in M4 Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard FDE Cerakote APAR700715M6

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in M4 Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard FDE Cerakote APAR700715M6. Specifications for Aero Precision M4E1 16in 5.56 ATLAS R-ONE M-LOK Complete Upper Receiver with... ... more

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in M4 Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black Anodized APAR700705M6

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in M4 Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black Anodized APAR700705M6. Specifications for Aero Precision M4E1 16in 5.56 ATLAS R-ONE M-LOK Complete Upper Receiver with... ... more

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid-Length Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard FDE Cerakote

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid-Length Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard FDE Cerakote. Specifications for Aero Precision M4E1 16in 5.56 ATLAS R-ONE M-LOK Complete Upper Receiver with Flash... ... more

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid-Length Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black Anodized

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid-Length Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black Anodized. Specifications for Aero Precision M4E1 16in 5.56 ATLAS R-ONE M-LOK Complete Upper Receiver with Flash... ... more

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid Length Pencil Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid Length Pencil Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black. Specifications for Aero Precision M4E1 16in 5.56 ATLAS R-ONE M-LOK Complete Upper Receiver with Flash... ... more

Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 16in Mid-Length Barrel 1-7 Twist 15in ATLAS R-ONE Handguard A2 Flash Hider Cerakote OD Green

Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 16in Mid-Length Barrel 1-7 Twist 15in ATLAS R-ONE Handguard A2 Flash Hider Cerakote OD Green. Specifications for Aero Precision M4E1 16in 5.56 ATLAS R-ONE M-LOK Complete Upper Receiver with... ... more

Aero Precision M4E1-T SM15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE APAR700115M97

Aero Precision M4E1-T SM15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE APAR700115M97. Specifications for Aero Precision M4E1-T SM15 5.56 x 45 Complete Upper: Manufacturer: Aero Precision Cartridge:... ... more

Aero Precision M4E1-T SM10.3 5 Complete Upper 5.56 x 45 12.5inch Government Carbine 1-7 Twist 1/2 x 28 Thread Cerakote FDE APAR700113M30

Aero Precision M4E1-T SM10.3 5 Complete Upper 5.56 x 45 12.5inch Government Carbine 1-7 Twist 1/2 x 28 Thread Cerakote FDE APAR700113M30. 3 5.56 x 45 Complete Upper then you've found yourself in the absolute right location.. These AR15 Upper... ... more

Aero Precision M4E1-E EQ15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Anodized Black APAR600206Q97

Aero Precision M4E1-E EQ15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Anodized Black APAR600206Q97. 56 x 45 Complete Upper then you have arrived at the right place.. These AR15 Upper Receivers through the professional... ... more

Aero Precision M4E1-T SM10.3 5 Complete Upper 5.56 x 45 12.5inch Government Carbine 1-7 Twist 1/2 x 28 Thread Anodized Black APAR700103M30

Aero Precision M4E1-T SM10.3 5 Complete Upper 5.56 x 45 12.5inch Government Carbine 1-7 Twist 1/2 x 28 Thread Anodized Black APAR700103M30. 3 5.56 x 45 Complete Upper then you've found yourself in the absolute right location.. These AR15 Upper... ... more

Aero Precision M4E1-E EQ15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE APAR600224Q97

Aero Precision M4E1-E EQ15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE APAR600224Q97. 56 x 45 Complete Upper then you have arrived at the right place.. These AR15 Upper Receivers through the professional... ... more

Aero Precision M4E1-T RM15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE APAR700715M97

Aero Precision M4E1-T RM15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE APAR700715M97. Specifications for Aero Precision M4E1-T RM15 5.56 x 45 Complete Upper: Manufacturer: Aero Precision Cartridge:... ... more

Aero Precision M4E1-E EM16.6 Complete Upper .223 Wylde 18inch SPR Rifle 1-8 Twist 1/2 x 28 Thread Anodized Black APAR600220M76

Aero Precision M4E1-E EM16.6 Complete Upper .223 Wylde 18inch SPR Rifle 1-8 Twist 1/2 x 28 Thread Anodized Black APAR600220M76. 6 .223 Wylde Rifle Complete Upper. Formulated working with several of the most extremely durable and long lasting... ... more

Aero Precision M4E1-E EM15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE APAR600294M97

Aero Precision M4E1-E EM15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE APAR600294M97. 56 x 45 Complete Upper was created in order to be the ideal product for any person trying to find a top quality option..... ... more

Ballistic Advantage Logic Series Barrel 5.56x45 13.9 inch Hanson Midlength 1-7 Twist 1/2 x 28 Thread Anodized Black BAUR10005

Ballistic Advantage Logic Series Barrel 5.56x45 13.9 inch Hanson Midlength 1-7 Twist 1/2 x 28 Thread Anodized Black BAUR10005. 9" 5.56 BA Hanson Midlength W/12" AR15 ATLAS R-One M-LOK Handguard Complete Upper Specifications for Ballistic Advantage... ... more

Ballistic Advantage Logic Series Barrel 5.56x45 11.3 inch Hanson Carbine 1-7 Twist 1/2 x 28 Thread Anodized Black BAUR10003

Ballistic Advantage Logic Series Barrel 5.56x45 11.3 inch Hanson Carbine 1-7 Twist 1/2 x 28 Thread Anodized Black BAUR10003. 9" 5.56 BA Hanson Midlength W/12" AR15 ATLAS R-One M-LOK Handguard Complete Upper Specifications for Ballistic Advantage... ... more

Ballistic Advantage Logic Series Barrel 5.56x45 16 inch Hanson Midlength 1-7 Twist 1/2 x 28 Thread Anodized Black BAUR10006

Ballistic Advantage Logic Series Barrel 5.56x45 16 inch Hanson Midlength 1-7 Twist 1/2 x 28 Thread Anodized Black BAUR10006. 9" 5.56 BA Hanson Midlength W/12" AR15 ATLAS R-One M-LOK Handguard Complete Upper Specifications for Ballistic Advantage... ... more

Ballistic Advantage Logic Series Barrel 5.56x45 10.3 inch Hanson Carbine 1-7 Twist 1/2 x 28 Thread Anodized Black BAUR10002

Ballistic Advantage Logic Series Barrel 5.56x45 10.3 inch Hanson Carbine 1-7 Twist 1/2 x 28 Thread Anodized Black BAUR10002. 9" 5.56 BA Hanson Midlength W/12" AR15 ATLAS R-One M-LOK Handguard Complete Upper Specifications for Ballistic Advantage... ... more

Aero Precision Complete Upper Receiver M4E1-T .223 Wylde 18in Government Rifle Length 1 in 8 1/2 x 28 15in A2 Flash Hider Cerakote FDE APAR700715M42

Aero Precision Complete Upper Receiver M4E1-T .223 Wylde 18in Government Rifle Length 1 in 8 1/2 x 28 15in A2 Flash Hider Cerakote FDE APAR700715M42. The R-ONE handguards are designed with size and weight in mind while still providing plenty of... ... more