Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 10.5in Barrel Length Carbine 1-8 Twist w/ 10in MLOK Anodized Black Medium AA-C10556C7K10

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 10.5in Barrel GOV-CMV Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta FDE STAG15101722

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 10.5in Barrel GOV-CMV Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta FDE STAG15101722. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics... ... more

Midwest Industries 10.5in CARBINE-LENGTH UPPER RECEIVER GROUP M-LOK 5.56 1/7 TWIST BARREL BLACK MI-556CRM9-U

Midwest Industries 10.5in CARBINE-LENGTH UPPER RECEIVER GROUP M-LOK 5.56 1/7 TWIST BARREL BLACK MI-556CRM9-U. 5" CARBINE-LENGTH UPPER RECEIVER GROUP M-LOK 5.56 1:7 BARREL BLACK Specifications for Midwest Industries 10.5in CARBINE-LENGTH UPPER RECEIVER... ... more

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 10.5in 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 10.5in 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

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

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

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

Tiger Rock Complete Upper Receiver AR-15 5.56 NATO 10in Carbine Length 1-8 Twist w/ 10in M-LOK Handguard Black Large UB15-P10-10ML

Tiger Rock Complete Upper Receiver AR-15 5.56 NATO 10in Carbine Length 1-8 Twist w/ 10in M-LOK Handguard Black Large UB15-P10-10ML. 56 NATO 10in Carbine Length 1:8 Twist with a 10in M-LOK Handguard with a port Dust Cover and Forward Assist. Upper... ... more

Jacob Grey Firearms Ultralight Complete Upper Assembly 5.56 NATO 10.5in Black 556N105ULCUA

Jacob Grey Firearms Ultralight Complete Upper Assembly 5.56 NATO 10.5in Black 556N105ULCUA. 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... ... more

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish XTSCUBO10BK

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish XTSCUBO10BK. With an Anchor Harvey Upper and an XTS Hand Guard this will make your next build the ultimate AR. These XTS... ... 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 Tactical Right Hand Upper Receiver 5.56 NATO 16in Barrel Maryland Compliant Hanson Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta Nitride

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

OP Exclusive Moriarti AR-15 Upper Receiver Assembly 5.56x45mm NATO 10.5in Carbine Government M-LOK 1-7 Twist 1/2x28 Diamond Cut Free-Float Handgrd

OP Exclusive Moriarti AR-15 Upper Receiver Assembly 5.56x45mm NATO 10.5in Carbine Government M-LOK 1-7 Twist 1/2x28 Diamond Cut Free-Float Handgrd. 5in 5.56x45mm NATO Upper Receiver Assembly Tri Port was created in order to function as the best product... ... more

Battle Arms Development Workhorse 10.5in 5.56 Nato Upper Receiver Assembly No Bcg No Ch WH-UR-10.5-556

Battle Arms Development Workhorse 10.5in 5.56 Nato Upper Receiver Assembly No Bcg No Ch WH-UR-10.5-556. 5-556 Barcode: 810033783784 Barrel Length: 10.5in Gas System: Carbine Barrel Profile: A2 Barrel Steel: 4150 Chrome-Moly Vanadium Barrel Finish:... ... more

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Bronze XTSCUBO10BR

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Bronze XTSCUBO10BR. With an Anchor Harvey Upper and an XTS Hand Guard this will make your next build the ultimate AR.... ... more

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

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish OD Green

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish OD Green. With an Anchor Harvey Upper and an XTS Hand Guard this will make your next build the ultimate AR. These XTS... ... more

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Purple XTSCUBO10PP

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Purple XTSCUBO10PP. With an Anchor Harvey Upper and an XTS Hand Guard this will make your next build the ultimate AR.... ... more

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Red XTSCUBO10RD

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Red XTSCUBO10RD. With an Anchor Harvey Upper and an XTS Hand Guard this will make your next build the ultimate AR. These... ... more

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Silver XTSCUBO10SL

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Silver XTSCUBO10SL. With an Anchor Harvey Upper and an XTS Hand Guard this will make your next build the ultimate AR.... ... 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

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

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

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

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 7.5in Barrel GOV-CMV Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta Nitride FDE STAG15101922

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 7.5in Barrel GOV-CMV Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta Nitride FDE STAG15101922. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights... ... more

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 7.5in Barrel GOV-CMV Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta Chromephos FDE

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 7.5in Barrel GOV-CMV Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta Chromephos FDE. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics and... ... 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

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 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

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

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

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

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash. 56 Complete Upper Receiver w/Pistol Lower Parts Kit is the perfect item for those looking to create a... ... more

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash. 56 Complete Upper Receiver w/Pistol Lower Parts Kit is the perfect item for those looking to create 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 5.56x45mm... ... 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

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

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