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| Best Seller  | Brownells Brn-4 Assembled Upper Receivers - Brn-4 16" Assembled Upper Receiver Heavy Barrel $130 off $1000+. Use code SEPT130Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device, and... ... more
Brownells Brn-4 Assembled Upper Receivers - Brn-4 16" Assembled Upper Receiver Heavy Barrel Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device, and... | go to store |
 | Brownells Brn-4 Assembled Upper Receivers - Brn-4 14.5" Assembled Upper Receiver Medium Barrel $130 off $1000+. Use code SEPT130Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device, and... ... more
Brownells Brn-4 Assembled Upper Receivers - Brn-4 14.5" Assembled Upper Receiver Medium Barrel Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device, and... | go to store |
| Best Seller  | Brownells Brn-4 Assembled Upper Receivers - Brn-4 16" Assembled Upper Receiver Medium Barrel $130 off $1000+. Use code SEPT130Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device, and... ... more
Brownells Brn-4 Assembled Upper Receivers - Brn-4 16" Assembled Upper Receiver Medium Barrel Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device, and... | go to store |
 | Brownells Upper Receiver Bushing For Hk416 & Mr556 - Brn-4 Upper Receiver Op Rod Bushing For Hk416 & U.S. made aftermarket replacement upper receiver op rod bushing for the Heckler & Koch 416 or MR556 Rifles. Mfg: Brownells ... more
Brownells Upper Receiver Bushing For Hk416 & Mr556 - Brn-4 Upper Receiver Op Rod Bushing For Hk416 & U.S. made aftermarket replacement upper receiver op rod bushing for the Heckler & Koch 416 or MR556 Rifles. Mfg: Brownells | go to store |
 | Brownells Bundles M5 16" Assembled Upper Receiver 308 Win W/ Optics - Aero M5 16" Upper Mid-Length W $130 off $1000+. Use code SEPT130Brownells is offering a great deal to our customers! We have paired up the Aero Precision M5 308 Winchester Assembled Upper Receiver with your choice of four different optics. The R-ONE handguards are designed with size and weight in mind, while still... ... more
Brownells Bundles M5 16" Assembled Upper Receiver 308 Win W/ Optics - Aero M5 16" Upper Mid-Length W Brownells is offering a great deal to our customers! We have paired up the Aero Precision M5 308 Winchester Assembled Upper Receiver with your choice of four different optics. The R-ONE handguards are designed with size and weight in mind, while still... | go to store |
 | Brownells Bundles M5 16" Assembled Upper Receiver 308 Win W/ Optics - Aero M5 16" Upper Mid-Length W $130 off $1000+. Use code SEPT130Brownells is offering a great deal to our customers! We have paired up the Aero Precision M5 308 Winchester Assembled Upper Receiver with your choice of four different optics. The R-ONE handguards are designed with size and weight in mind, while still... ... more
Brownells Bundles M5 16" Assembled Upper Receiver 308 Win W/ Optics - Aero M5 16" Upper Mid-Length W Brownells is offering a great deal to our customers! We have paired up the Aero Precision M5 308 Winchester Assembled Upper Receiver with your choice of four different optics. The R-ONE handguards are designed with size and weight in mind, while still... | go to store |
 | Brownells Bundles M5 16" Assembled Upper Receiver 308 Win W/ Optics - Aero M5 16" Upper Ml W/ Tango $130 off $1000+. Use code SEPT130Brownells is offering a great deal to our customers! We have paired up the Aero Precision M5 308 Winchester Assembled Upper Receiver with your choice of four different optics. The R-ONE handguards are designed with size and weight in mind, while still... ... more
Brownells Bundles M5 16" Assembled Upper Receiver 308 Win W/ Optics - Aero M5 16" Upper Ml W/ Tango Brownells is offering a great deal to our customers! We have paired up the Aero Precision M5 308 Winchester Assembled Upper Receiver with your choice of four different optics. The R-ONE handguards are designed with size and weight in mind, while still... | go to store |
 | Brownells Bundles M5 16" Assembled Upper Receiver 308 Win W/ Optics - Aero M5 16" Upper Mid-Length W $55 off $500+. Use code SEPT55Brownells is offering a great deal to our customers! We have paired up the Aero Precision M5 308 Winchester Assembled Upper Receiver with your choice of four different optics. The R-ONE handguards are designed with size and weight in mind, while still... ... more
Brownells Bundles M5 16" Assembled Upper Receiver 308 Win W/ Optics - Aero M5 16" Upper Mid-Length W Brownells is offering a great deal to our customers! We have paired up the Aero Precision M5 308 Winchester Assembled Upper Receiver with your choice of four different optics. The R-ONE handguards are designed with size and weight in mind, while still... | go to store |
 | Brownells Brn-4 416/Mr556 Complete Bolt Carrier Group - Brn-4 416 Type Complete Bcg Nitride $20 off $200+. Use code SEPT20BRN-4 Complete Bolt Carrier Group for 416 Type Firearms This Completely assembled BRN-4 Bolt Carrier Group is ready to drop into HK 416, MR556 or other compatible upper receivers & firearms. Utilizing high quality materials, finishes and inspection... ... more
Brownells Brn-4 416/Mr556 Complete Bolt Carrier Group - Brn-4 416 Type Complete Bcg Nitride BRN-4 Complete Bolt Carrier Group for 416 Type Firearms This Completely assembled BRN-4 Bolt Carrier Group is ready to drop into HK 416, MR556 or other compatible upper receivers & firearms. Utilizing high quality materials, finishes and inspection... | go to store |
 | Brownells Brn-15 11.5" Upper Receiver Assembly 5.56mm - Brn-15 11.5" Upper Receiver Assy .750" W/ Ch $20 off $200+. Use code SEPT20The perfect upper receiver for your next build! Manufactured in the US with the highest quality components. This upper receiver is available in 5.56 Nato with 11.5" barrel. Government profile barrels have the standard .750" gas block. Now with... ... more
Brownells Brn-15 11.5" Upper Receiver Assembly 5.56mm - Brn-15 11.5" Upper Receiver Assy .750" W/ Ch The perfect upper receiver for your next build! Manufactured in the US with the highest quality components. This upper receiver is available in 5.56 Nato with 11.5" barrel. Government profile barrels have the standard .750" gas block. Now with... | go to store |
 | Brownells Ar-15 16" Upper Receiver Assemblies 5.56mm - Brn-15 16" Upper Receiver Assy .625" W/ Ch & $20 off $200+. Use code SEPT20Manufactured in the US with the highest quality components, the BRN-15 Upper Receiver Groups are great starts for your next build. The BRN-15 Upper Receiver Groups feature a 5.56x45mm NATO chambered, nitride finished barrel, available in several... ... more
Brownells Ar-15 16" Upper Receiver Assemblies 5.56mm - Brn-15 16" Upper Receiver Assy .625" W/ Ch & Manufactured in the US with the highest quality components, the BRN-15 Upper Receiver Groups are great starts for your next build. The BRN-15 Upper Receiver Groups feature a 5.56x45mm NATO chambered, nitride finished barrel, available in several... | go to store |
 | Brownells Brn-16a4 Complete Upper Receiver - Brn 16a4 20" Upper Receiver $55 off $500+. Use code SEPT55The BRN-16A4 features the correct components you're seeking in a M16A4 build. With the classic 20 inch Government profile 5.56x45mm NATO barrel, the BRN-16A4 has an instantly recognizable appearance. The 20 inch barrel has a chrome bore and chamber,... ... more
Brownells Brn-16a4 Complete Upper Receiver - Brn 16a4 20" Upper Receiver The BRN-16A4 features the correct components you're seeking in a M16A4 build. With the classic 20 inch Government profile 5.56x45mm NATO barrel, the BRN-16A4 has an instantly recognizable appearance. The 20 inch barrel has a chrome bore and chamber,... | go to store |
 | Brownells Bundles M4e1-T 16" Upper Receiver 223 Wylde W/ Optics - Aero 16" Upper Mid-Length W/ Exps2 $130 off $1000+. Use code SEPT130Brownells is offering the Aero Precision M4E1 with a choice of three different optics! We are offering this upper with the Eotech EXPS2-0, EXPS3-0, or the Sig Sauer Tango MSR 1-6x24mm Scope! This assembled upper includes Aero Precision's new ATLAS... ... more
Brownells Bundles M4e1-T 16" Upper Receiver 223 Wylde W/ Optics - Aero 16" Upper Mid-Length W/ Exps2 Brownells is offering the Aero Precision M4E1 with a choice of three different optics! We are offering this upper with the Eotech EXPS2-0, EXPS3-0, or the Sig Sauer Tango MSR 1-6x24mm Scope! This assembled upper includes Aero Precision's new ATLAS... | go to store |
 | Brownells Bundles M4e1-T 16" Upper Receiver 223 Wylde W/ Optics - Aero 16" Upper Mid-Length W/ Exps3 $130 off $1000+. Use code SEPT130Brownells is offering the Aero Precision M4E1 with a choice of three different optics! We are offering this upper with the Eotech EXPS2-0, EXPS3-0, or the Sig Sauer Tango MSR 1-6x24mm Scope! This assembled upper includes Aero Precision's new ATLAS... ... more
Brownells Bundles M4e1-T 16" Upper Receiver 223 Wylde W/ Optics - Aero 16" Upper Mid-Length W/ Exps3 Brownells is offering the Aero Precision M4E1 with a choice of three different optics! We are offering this upper with the Eotech EXPS2-0, EXPS3-0, or the Sig Sauer Tango MSR 1-6x24mm Scope! This assembled upper includes Aero Precision's new ATLAS... | go to store |
 | Brownells Qrb Upper Receiver Takedown Kits W/ Law Folding Adapter - Qrb Upper Takedown Kit Carbine W $55 off $500+. Use code SEPT55The Cry Havoc Tactical QRB (Quick Release Barrel) 2 Pin Upper Receiver Takedown Kit for AR-15 style rifles or pistols. While the QRB was primarily designed for the civilian market, non-civilian applications range from the Air Force using the QRB on the... ... more
Brownells Qrb Upper Receiver Takedown Kits W/ Law Folding Adapter - Qrb Upper Takedown Kit Carbine W The Cry Havoc Tactical QRB (Quick Release Barrel) 2 Pin Upper Receiver Takedown Kit for AR-15 style rifles or pistols. While the QRB was primarily designed for the civilian market, non-civilian applications range from the Air Force using the QRB on the... | go to store |
 | Brownells Bundles M4e1-T 16" Upper Receiver 223 Wylde W/ Optics - Aero 16" Upper Mid-Length W/ Tango $55 off $500+. Use code SEPT55Brownells is offering the Aero Precision M4E1 with a choice of three different optics! We are offering this upper with the Eotech EXPS2-0, EXPS3-0, or the Sig Sauer Tango MSR 1-6x24mm Scope! This assembled upper includes Aero Precision's new ATLAS... ... more
Brownells Bundles M4e1-T 16" Upper Receiver 223 Wylde W/ Optics - Aero 16" Upper Mid-Length W/ Tango Brownells is offering the Aero Precision M4E1 with a choice of three different optics! We are offering this upper with the Eotech EXPS2-0, EXPS3-0, or the Sig Sauer Tango MSR 1-6x24mm Scope! This assembled upper includes Aero Precision's new ATLAS... | go to store |
 | Brownells Qrb Upper Receiver Takedown Kits W/ Law Folding Adapter - Qrb Upper Takedown Kit Pistol W/ $55 off $500+. Use code SEPT55The Cry Havoc Tactical QRB (Quick Release Barrel) 2 Pin Upper Receiver Takedown Kit for AR-15 style rifles or pistols. While the QRB was primarily designed for the civilian market, non-civilian applications range from the Air Force using the QRB on the... ... more
Brownells Qrb Upper Receiver Takedown Kits W/ Law Folding Adapter - Qrb Upper Takedown Kit Pistol W/ The Cry Havoc Tactical QRB (Quick Release Barrel) 2 Pin Upper Receiver Takedown Kit for AR-15 style rifles or pistols. While the QRB was primarily designed for the civilian market, non-civilian applications range from the Air Force using the QRB on the... | go to store |
 | Brownells Qrb Upper Receiver Takedown Kits W/ Law Folding Adapter - Qrb Upper Takedown Kit No Gt W/ $55 off $500+. Use code SEPT55The Cry Havoc Tactical QRB (Quick Release Barrel) 2 Pin Upper Receiver Takedown Kit for AR-15 style rifles or pistols. While the QRB was primarily designed for the civilian market, non-civilian applications range from the Air Force using the QRB on the... ... more
Brownells Qrb Upper Receiver Takedown Kits W/ Law Folding Adapter - Qrb Upper Takedown Kit No Gt W/ The Cry Havoc Tactical QRB (Quick Release Barrel) 2 Pin Upper Receiver Takedown Kit for AR-15 style rifles or pistols. While the QRB was primarily designed for the civilian market, non-civilian applications range from the Air Force using the QRB on the... | go to store |
 | Brownells Qrb Upper Receiver Takedown Kits W/ Law Folding Adapter - Qrb Upper Takedown Kit Mid-Lengt $55 off $500+. Use code SEPT55The Cry Havoc Tactical QRB (Quick Release Barrel) 2 Pin Upper Receiver Takedown Kit for AR-15 style rifles or pistols. While the QRB was primarily designed for the civilian market, non-civilian applications range from the Air Force using the QRB on the... ... more
Brownells Qrb Upper Receiver Takedown Kits W/ Law Folding Adapter - Qrb Upper Takedown Kit Mid-Lengt The Cry Havoc Tactical QRB (Quick Release Barrel) 2 Pin Upper Receiver Takedown Kit for AR-15 style rifles or pistols. While the QRB was primarily designed for the civilian market, non-civilian applications range from the Air Force using the QRB on the... | go to store |
 | Brownells Qrb Upper Receiver Takedown Kits W/ Law Folding Adapter - Qrb Upper Takedown Kit Rifle W/ $55 off $500+. Use code SEPT55The Cry Havoc Tactical QRB (Quick Release Barrel) 2 Pin Upper Receiver Takedown Kit for AR-15 style rifles or pistols. While the QRB was primarily designed for the civilian market, non-civilian applications range from the Air Force using the QRB on the... ... more
Brownells Qrb Upper Receiver Takedown Kits W/ Law Folding Adapter - Qrb Upper Takedown Kit Rifle W/ The Cry Havoc Tactical QRB (Quick Release Barrel) 2 Pin Upper Receiver Takedown Kit for AR-15 style rifles or pistols. While the QRB was primarily designed for the civilian market, non-civilian applications range from the Air Force using the QRB on the... | go to store |
 | Brownells Ar-15/M16 Upper Receiver Action Block Heavy-duty blocks allow you to firmly clamp AR-15/M16 receiver halves in a vise without risk of crushing, twisting, or otherwise distorting them when applying vise pressure or torquing the barrel nut. Keeps your rifle secure for safe, effective... ... more
Brownells Ar-15/M16 Upper Receiver Action Block Heavy-duty blocks allow you to firmly clamp AR-15/M16 receiver halves in a vise without risk of crushing, twisting, or otherwise distorting them when applying vise pressure or torquing the barrel nut. Keeps your rifle secure for safe, effective... | go to store |
 | Brownells Ar-15/M16 Receiver Taps & Dies - 1 3/16"-16 Tpi Die Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... ... more
Brownells Ar-15/M16 Receiver Taps & Dies - 1 3/16"-16 Tpi Die Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... | go to store |
 | Brownells Ar-15/M16 Receiver Taps & Dies - 1 3/16"-16 Tpi Tap Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... ... more
Brownells Ar-15/M16 Receiver Taps & Dies - 1 3/16"-16 Tpi Tap Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... | go to store |
 | Brownells Ar-15/M16 Receiver Taps & Dies - 1-3/16-16 Carbon Steel Hex Die Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... ... more
Brownells Ar-15/M16 Receiver Taps & Dies - 1-3/16-16 Carbon Steel Hex Die Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... | go to store |
 | Brownells Ar-15/M16 Receiver Taps & Dies - 1.250"-18 Tpi Tap Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... ... more
Brownells Ar-15/M16 Receiver Taps & Dies - 1.250"-18 Tpi Tap Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... | go to store |
 | Brownells 733 C7 11.5" Upperr W/Colt Ar-15 4x21mm Optic - 733 C7 11.5" Upper W/Colt Ar-15 4x21mm $130 off $1000+. Use code SEPT130The Brownells 733 C7 Upper Receiver, a classic reborn! Featuring an 11.5" lightweight "A1" profile barrel, 1-7 twist, C7 upper with shell defector and a CAR handguards, the Commando is a unique entry into the AR-15 series. It is a mix of old school and... ... more
Brownells 733 C7 11.5" Upperr W/Colt Ar-15 4x21mm Optic - 733 C7 11.5" Upper W/Colt Ar-15 4x21mm The Brownells 733 C7 Upper Receiver, a classic reborn! Featuring an 11.5" lightweight "A1" profile barrel, 1-7 twist, C7 upper with shell defector and a CAR handguards, the Commando is a unique entry into the AR-15 series. It is a mix of old school and... | go to store |
 | Brownells Ar-15/M16 Barrel Extension Torque Tools - Ar-15/M16 Barrel Extension Torque Tool Handy tool aids in applying straight-line torque for fast, easy installation of the barrel nut without scratching the exterior of the upper receiver. Helps ensure the right amount of torque is evenly applied, while maintaining proper alignment of the... ... more
Brownells Ar-15/M16 Barrel Extension Torque Tools - Ar-15/M16 Barrel Extension Torque Tool Handy tool aids in applying straight-line torque for fast, easy installation of the barrel nut without scratching the exterior of the upper receiver. Helps ensure the right amount of torque is evenly applied, while maintaining proper alignment of the... | go to store |
 | Brownells 308 Ar Barrel Extension Torque Tools - 308ar Barrel Extension Torque Tool Handy tool aids in applying straight-line torque for fast, easy installation of the barrel nut without scratching the exterior of the upper receiver. Helps ensure the right amount of torque is evenly applied, while maintaining proper alignment of the... ... more
Brownells 308 Ar Barrel Extension Torque Tools - 308ar Barrel Extension Torque Tool Handy tool aids in applying straight-line torque for fast, easy installation of the barrel nut without scratching the exterior of the upper receiver. Helps ensure the right amount of torque is evenly applied, while maintaining proper alignment of the... | go to store |
 | Brownells Ar-15 Barrel Installation Kit Handy kit contains two Brownells tools that AR-fans all over the country have told us are indispensable for removing and installing barrels quickly. Our Upper Receiver Action Block wraps completely around any standard A2 carry handle or A3/A4/M4... ... more
Brownells Ar-15 Barrel Installation Kit Handy kit contains two Brownells tools that AR-fans all over the country have told us are indispensable for removing and installing barrels quickly. Our Upper Receiver Action Block wraps completely around any standard A2 carry handle or A3/A4/M4... | go to store |
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