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Best Seller | Rainier Arms Ruc Pro Mk1 5.56 Nato Partial Upper Receiver Black 16 in RA-MK1-16-PU-BLK Rainier Arms Ruc Pro Mk1 5.56 Nato Partial Upper Receiver Black 16 in RA-MK1-16-PU-BLK. Bringing the highest quality parts to the market while offering the best value as well. This partial upper utilizes a Rainier Arms Low Pro nonadjustable gas block... ... more | FREE shipping go to store |
Rainier Arms Ruc Pro Mk2 5.56 Nato Partial Upper Receiver Black 11.5 in RA-RUC-PRO-MK1-RS-115-PU Rainier Arms Ruc Pro Mk2 5.56 Nato Partial Upper Receiver Black 11.5 in RA-RUC-PRO-MK1-RS-115-PU. Bringing the highest quality parts to the market while offering the best value as well. This partial upper utilizes a Rainier Arms Low Pro nonadjustable... ... more | FREE shipping go to store |
Rainier Arms Ruc Pro Mk1 5.56 Nato Partial Upper Receiver Black 11.5 in RA-MK1-11.5-PU-BLK Rainier Arms Ruc Pro Mk1 5.56 Nato Partial Upper Receiver Black 11.5 in RA-MK1-11.5-PU-BLK. Bringing the highest quality parts to the market while offering the best value as well. This partial upper utilizes a Rainier Arms Low Pro nonadjustable gas... ... more | FREE shipping go to store |
Rainier Arms Ruc Pro Mk1 5.56 Nato Partial Upper Receiver Black 12.5 in RA-MK1-12.5-PU-BLK Rainier Arms Ruc Pro Mk1 5.56 Nato Partial Upper Receiver Black 12.5 in RA-MK1-12.5-PU-BLK. Bringing the highest quality parts to the market while offering the best value as well. This partial upper utilizes a Rainier Arms Low Pro nonadjustable gas... ... more | FREE shipping go to store |
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 | FREE shipping go to store |
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 | FREE shipping go to store |
Rainier Arms Ruc Pro Mk1 5.56 Nato Partial Upper Receiver Black 10.5 in RA-MK1-10.5-PU-BLK Rainier Arms Ruc Pro Mk1 5.56 Nato Partial Upper Receiver Black 10.5 in RA-MK1-10.5-PU-BLK. Bringing the highest quality parts to the market while offering the best value as well. This partial upper utilizes a Rainier Arms Low Pro nonadjustable gas... ... more | FREE shipping go to store |
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 | FREE shipping go to store |
Rainier Arms Ruc Pro Mk2 5.56 Nato Partial Upper Receiver Black 12.5 in RA-RUC-PRO-MK2-125-PU Rainier Arms Ruc Pro Mk2 5.56 Nato Partial Upper Receiver Black 12.5 in RA-RUC-PRO-MK2-125-PU. Bringing the highest quality parts to the market while offering the best value as well. This partial upper utilizes a Rainier Arms Low Pro nonadjustable gas... ... more | FREE shipping go to store |
Rainier Arms Ruc Pro Mk2 5.56 Nato Partial Upper Receiver Black 12 in RA-RUC-PRO-MK1-RS-12-PU Rainier Arms Ruc Pro Mk2 5.56 Nato Partial Upper Receiver Black 12 in RA-RUC-PRO-MK1-RS-12-PU. Bringing the highest quality parts to the market while offering the best value as well. This partial upper utilizes a Rainier Arms Low Pro nonadjustable gas... ... more | FREE shipping go to store |
Rainier Arms Ruc Pro Mk2 5.56 Nato Partial Upper Receiver Black 10.5 in RA-RUC-PRO-MK2-105-PU Rainier Arms Ruc Pro Mk2 5.56 Nato Partial Upper Receiver Black 10.5 in RA-RUC-PRO-MK2-105-PU. Bringing the highest quality parts to the market while offering the best value as well. This partial upper utilizes a Rainier Arms Low Pro nonadjustable gas... ... more | FREE shipping go to store |
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 | FREE shipping go to store |
Rainier Arms RUC DI 5.56 Nato Partial Upper Receiver Black 10.5 in RA-RUC-DI-10C-PU Rainier Arms RUC DI 5.56 Nato Partial Upper Receiver Black 10.5 in RA-RUC-DI-10C-PU. Bringing the highest quality parts to the market while offering the best value as well. This partial upper utilizes a direct impingement operating system on their new... ... more | FREE shipping go to store |
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 | FREE shipping go to store |
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 | FREE shipping go to store |
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 | FREE shipping go to store |
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 | FREE shipping go to store |
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 | FREE shipping go to store |
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 | FREE shipping go to store |
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 | FREE shipping go to store |
Battle Arms Development Workhorse 16in 5.56 Nato Upper Receiver Assembly No Bcg No Ch WH-UR-16-556 Battle Arms Development Workhorse 16in 5.56 Nato Upper Receiver Assembly No Bcg No Ch WH-UR-16-556. 56 NATO Twist Rate: 1:7 Barrel Extension: M4 Diameter at Gas Block: .750 Gas Block Type: Low-profile Muzzle Device: A2 Flash Hider Receiver Material:... ... more | FREE shipping go to store |
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 Chrome... ... more | FREE shipping go to store |
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 5.56x45mm... ... more | FREE shipping go to store |
Stag Arms AR-15 Tactical Left Hand Upper Receiver 5.56 NATO 16in Barrel Hanson Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta Nitride Black STAG15110142. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights... ... more | FREE shipping go to store |
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 Delta Black STAG15100142. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics and... ... more | FREE shipping go to store |
Stag Arms AR-15 Upper Left Hand Receiver 5.56 NATO 16in Barrel NJ Compliant M4 Profile1-7 Twist 1/2 x 28 Thread Compensator Black STAG15111113. Made to mil-spec standards this upper satisfies the need for a standard GI carbine. Featuring a 5.56x45mm... ... more | FREE shipping go to store |
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 | FREE shipping go to store |
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 | FREE shipping go to store |
Stag Arms AR-15 Retro Left Hand Upper Receiver 5.56 NATO 20in Barrel NJ Compliant GOV Profile 1-7 Twist 1/2 x 28 Thread Compensator Black STAG15111013. Made to mil-spec standards with a removable A3 carry handle and a rifle length thermoplastic... ... more | FREE shipping go to store |
Rainier Arms MK12 223 Wylde Partial Upper Receiver Black 18 in RA-MK12-DI-18R-PU Rainier Arms MK12 223 Wylde Partial Upper Receiver Black 18 in RA-MK12-DI-18R-PU. Bringing the highest quality parts to the market while offering the best value as well. This partial upper build utilizes a Precision Reflex GEN III free float handguard... ... more | FREE shipping go to store |
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 | FREE shipping go to store |
Stag Arms AR-15 Retro Right Hand Upper Receiver 5.56 NATO 20in Barrel NJ Compliant 1-7 Twist 1/2 x 28 Thread Compensator Black STAG15101013. Made to mil-spec standards with a removable A3 carry handle and a rifle length thermoplastic handguard with... ... more | FREE shipping go to store |
Aero Precision AR15 Complete Upper Receiver 16in 5.56 Carbine Barrel w/ Pinned Front Sight Base M4 Handguard Black APAR505621. 56 NATO complete upper receiver from Aero Precision. These Mil-Spec AR15 Upper Receivers are built from tough 4150 Chrome... ... more | FREE shipping go to store |
Stag Arms AR-15 Retro Right Hand Upper Receiver 5.56 NATO 20in Barrel 1-7 Twist 1/2 x 28 Thread A2 Birdcage Flash Hider Black STAG15101011. Made to mil-spec standards with a removable A3 carry handle and a rifle length thermoplastic handguard with... ... more | FREE shipping go to store |
Rainier Arms Select 5.56 NATO Barrel 18in 1-7 Twist 1/2x28 Black Medium RAB-SEL-556-18-R-NF-BLK Rainier Arms Select 5.56 NATO Barrel 18in 1-7 Twist 1/2x28 Black Medium RAB-SEL-556-18-R-NF-BLK. They are able to reach our goal by sourcing a very high end barrel blank at an affordable price. They start off using a high precision match blank in 1:7... ... more | FREE shipping go to store |
Rainier Arms Ruc Di 300BLK Partial Upper Receiver Black 10.7 in RA-RUC-DI-300BLK-10-7-PU Rainier Arms Ruc Di 300BLK Partial Upper Receiver Black 10.7 in RA-RUC-DI-300BLK-10-7-PU. Bringing the highest quality parts to the market while offering the best value as well. This partial upper utilizes a direct impingement operating system on our... ... more | FREE shipping go to store |
Bushmaster Bravo Zulu A4 5.56 NATO Upper Receiver 16in 1-8 Twist Black 00-40006-BLK Bushmaster Bravo Zulu A4 5.56 NATO Upper Receiver 16in 1-8 Twist Black 00-40006-BLK. Bravo Zulu meaning a job well done is introduced into the XM15-E2S family with a free float rail the Snake Charmer Muzzle Brake and MLOK Free Float Rail with QD Sling... ... more | FREE shipping go to store |
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