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

Wilson Combat Upper Complete Forged 5.56 NATO Protector Mid Length 16in Round Q-Comp 1-8 Twist Black Without Forward Assist Black TR-UFW556LEM16RQ8B

Wilson Combat Upper Complete Forged 5.56 NATO Protector Mid Length 16in Round Q-Comp 1-8 Twist Black Without Forward Assist Black TR-UFW556LEM16RQ8B. Complete High Performance AR Upper Receiver Units use the same top tier components skilled gunsmith... ... more

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid-Length Barrel 15in M-LOK ATLAS R-ONE Handguard Anodized

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid-Length Barrel 15in M-LOK ATLAS R-ONE Handguard Anodized. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver... ... more

AIM Sports Inc Complete AR Pistol Upper Receiver w/ BCG 5.56 NATO 10.5in Barrel M4 Profile Carbine 1-8 Twist 1/2x28 Thread 10M-LOK Free Float

AIM Sports Inc Complete AR Pistol Upper Receiver w/ BCG 5.56 NATO 10.5in Barrel M4 Profile Carbine 1-8 Twist 1/2x28 Thread 10M-LOK Free Float. . Developed by using several of the most extremely heavy duty and dependable resources in existence these... ... more

Wilson Combat Upper Complete Forged 5.56 NATO Protector Mid-Length 16in Round Q-Comp 1-8 Twist Black Black TR-UF556LEM16RQ8B

Wilson Combat Upper Complete Forged 5.56 NATO Protector Mid-Length 16in Round Q-Comp 1-8 Twist Black Black TR-UF556LEM16RQ8B. Complete High Performance AR Upper Receiver Units use the same top tier components skilled gunsmith assembly and final... ... more

Wilson Combat Upper Complete Forged 5.56 NATO Recon Mid Length 16in Round Q-Comp 1-8 Twist Black Black TR-UF556RCM16RQ8B

Wilson Combat Upper Complete Forged 5.56 NATO Recon Mid Length 16in Round Q-Comp 1-8 Twist Black Black TR-UF556RCM16RQ8B. Complete High Performance AR Upper Receiver Units use the same top tier components skilled gunsmith assembly and final finishing... ... more

Wilson Combat Upper Complete Forged 5.56 NATO Ranger Mid Length 16in Round Q-Comp 1-8 Twist Black Black TR-UF556RAM16RQ8B

Wilson Combat Upper Complete Forged 5.56 NATO Ranger Mid Length 16in Round Q-Comp 1-8 Twist Black Black TR-UF556RAM16RQ8B. Complete High Performance AR Upper Receiver Units use the same top tier components skilled gunsmith assembly and final finishing... ... more

Tiger Rock Complete Upper Receiver AR-15 5.56 NATO 16in Mid Length 1-7 Twist w/ 16in Keymod Handguard Black Large UB15-FKM16

Tiger Rock Complete Upper Receiver AR-15 5.56 NATO 16in Mid Length 1-7 Twist w/ 16in Keymod Handguard Black Large UB15-FKM16. The Upper Receiver 16in Barrel and Bolt Carrier Group are made in specialized factories Included is a 16in Free Float Keymod... ... 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 5.56x45mm... ... more

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 16in Barrel Hanson Profile 1-7 Twist 1/2 x 28 Thread VG6 Gamma Black STAG15100144

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 16in Barrel Hanson Profile 1-7 Twist 1/2 x 28 Thread VG6 Gamma Black STAG15100144. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics and... ... more

Stag Arms AR-15 3-Gun Elite Right HandUpper Receiver 5.56 NATO 18in Barrel NJ Compliant Heavy-Fluted Profile 1-8 Twist VG6 Gamma Black STAG15100613

Stag Arms AR-15 3-Gun Elite Right HandUpper Receiver 5.56 NATO 18in Barrel NJ Compliant Heavy-Fluted Profile 1-8 Twist VG6 Gamma Black STAG15100613. Specifications for Stag Arms AR-15 3-Gun Elite Right HandUpper Receiver: Manufacturer: Stag Arms Color:... ... more

Stag Arms AR-15 3-Gun Elite Left HandUpper Receiver 5.56 NATO 18in Barrel NJ Compliant Heavy-Fluted Profile 1-8 Twist VG6 Gamma Black STAG15110613

Stag Arms AR-15 3-Gun Elite Left HandUpper Receiver 5.56 NATO 18in Barrel NJ Compliant Heavy-Fluted Profile 1-8 Twist VG6 Gamma Black STAG15110613. . Developed working with several of the most robust and dependable resources in existence these AR15... ... more

Tiger Rock Complete Upper Receiver AR-15 5.56 NATO 16in Carbine Length 1-8 Twist w/10in M-LOK Handguard Black Large UB15-10ML

Tiger Rock Complete Upper Receiver AR-15 5.56 NATO 16in Carbine Length 1-8 Twist w/10in M-LOK Handguard Black Large UB15-10ML. 56 NATO 16in Carbine Length Complete Upper Receiver was made in order to be the ideal item for anyone needing a high quality... ... more

POF USA Minuteman Upper Receiver 5.56 10.5in Barrel Carbine Length 1-8 Twist 1/2x28 9in Renegade Rail 3-prong Flash Hider Tungsten 1816

POF USA Minuteman Upper Receiver 5.56 10.5in Barrel Carbine Length 1-8 Twist 1/2x28 9in Renegade Rail 3-prong Flash Hider Tungsten 1816. They took it upon themselves to be trained in various weapons and tactics. We deeply admire their patriotism and... ... more

POF USA Minuteman Upper Receiver 5.56 10.5in Barrel Carbine Length 1-8 Twist 1/2x28 9in Renegade Rail 3-prong Flash Hider Patriot Brown 1817

POF USA Minuteman Upper Receiver 5.56 10.5in Barrel Carbine Length 1-8 Twist 1/2x28 9in Renegade Rail 3-prong Flash Hider Patriot Brown 1817. They took it upon themselves to be trained in various weapons and tactics. We deeply admire their patriotism... ... more

NEMO Arms NATO Barrel 5.56 NATO 11.5in Carbine Length 1-8 Twist 1/2x28 Thread 556-11.5-B

NEMO Arms NATO Barrel 5.56 NATO 11.5in Carbine Length 1-8 Twist 1/2x28 Thread 556-11.5-B. Starting with premium blanks NEMO has defined accuracy through precision machining that is done right in shop. Specifications for NEMO Arms NATO Barrel:... ... 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 chambered... ... 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

Moriarti Complete Upper Receiver AR-15 5.56 Nato 10.5 inch Barrel Government Contour Carbine Length 1x7 Twist 1/2X28 Thread M-LOK Handguard Mini

Moriarti Complete Upper Receiver AR-15 5.56 Nato 10.5 inch Barrel Government Contour Carbine Length 1x7 Twist 1/2X28 Thread M-LOK Handguard Mini. 5 inch 5.56 Nato Upper Receiver Assembly then you've showed up at the absolute correct place.. Established... ... 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 5.56x45mm... ... 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 10.5 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 10.5 inch Barrel w/Pinned FSB Magpul MOE SL Handguard A2 Flash Hider Anodized Black. 5" 5.56 Rifle Length Barrel w/ Pinned FSB and Magpul MOE Rifle Length Handguard Specifications for... ... more

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 10.5 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider Anodized Black

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 10.5 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider Anodized Black. 5" 5.56 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 10.5 inch Barrel w/Pinned FSB Magpul MOE SL Handguard A2 Flash Hider FDE Cerakote

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 10.5 inch Barrel w/Pinned FSB Magpul MOE SL Handguard A2 Flash Hider FDE Cerakote. 5" 5.56 Rifle Length Barrel w/ Pinned FSB and Magpul MOE Rifle Length Handguard Specifications for Aero... ... more

XTS Complete Upper Receiver w/o BCG w/ 12in Ce Rail USA Edition AR-15 24.75in 16in Barrel Carbine 1-8 Twist 1/2x28 Thread M-LOK Stainless Steel Bird

XTS Complete Upper Receiver w/o BCG w/ 12in Ce Rail USA Edition AR-15 24.75in 16in Barrel Carbine 1-8 Twist 1/2x28 Thread M-LOK Stainless Steel Bird. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. These... ... more

Rainier Arms Rellim Arms AR-15 5.56 Nato Take Down Upper Receiver Assembly Black 16 in RA-TDURA-556-16

Rainier Arms Rellim Arms AR-15 5.56 Nato Take Down Upper Receiver Assembly Black 16 in RA-TDURA-556-16. Utilizing Rellims patented quick detach upper receiver and barrel nut system and Rainiers quality parts its a match made in heaven. Whether you want... ... 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 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 for... ... more

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 11.5in 5.56 Barrel 9in M-LOK ATLAS S-ONE Handguard Anodized Black

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 11.5in 5.56 Barrel 9in M-LOK ATLAS S-ONE Handguard Anodized Black. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver you... ... more

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 11.5in 5.56 Barrel 9in M-LOK ATLAS R-ONE Handguard Anodized Black

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 11.5in 5.56 Barrel 9in M-LOK ATLAS R-ONE Handguard Anodized Black. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver you... ... 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 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 AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid Pencil Barrel 15in M-LOK ATLAS R-ONE Handguard Anodized

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid Pencil Barrel 15in M-LOK ATLAS R-ONE Handguard Anodized. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver... ... more

Jacob Grey Firearms Ultralight Complete Upper Assembly 5.56 NATO 16in Black 556N16ULCUA

Jacob Grey Firearms Ultralight Complete Upper Assembly 5.56 NATO 16in Black 556N16ULCUA. This AR-15 complete upper assembly is built around the 7075-T6 billet upper receiver specifically machined and cut in areas where excess material was unnecessary... ... more

XTS Complete Upper Receiver w/o BCG w/ 12in Rail AR-15 300 BO 24.75in 16in Barrel Carbine 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish

XTS Complete Upper Receiver w/o BCG w/ 12in Rail AR-15 300 BO 24.75in 16in Barrel Carbine 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish. These XTS complete uppers do not include the Bolt Carrier Group. Specifications for XTS AR-15 16in... ... more

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid-Length Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid-Length Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver... ... more

XTS Complete Upper Receiver w/o BCG w/ 12in Rail AR-15 300 BO 24.75in 16in Barrel Carbine 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish

XTS Complete Upper Receiver w/o BCG w/ 12in Rail AR-15 300 BO 24.75in 16in Barrel Carbine 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish. These XTS complete uppers do not include the Bolt Carrier Group. Specifications for XTS AR-15 16in... ... more

XTS Complete Upper Receiver w/o BCG w/ 12in Rail AR-15 300 BO 24.75in 16in Barrel Carbine 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish

XTS Complete Upper Receiver w/o BCG w/ 12in Rail AR-15 300 BO 24.75in 16in Barrel Carbine 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish. These XTS complete uppers do not include the Bolt Carrier Group. Specifications for XTS AR-15 16in... ... more