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Best Seller | Brownells Brn-4 Barrels 5.56x45mm - Brn-4 16" Barrel Medium Profile 1-7 1/2-28" $20 off $200+. Use code SEPT20Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit early... ... more | go to store |
Brownells Brn-4 Barrels 5.56x45mm - Brn-4 16" Barrel Heavy Profile 1-7 1/2-28" $20 off $200+. Use code SEPT20Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit early... ... more | go to store |
Brownells Brn-4 Barrels 5.56x45mm - Brn-4 14.5" Barrel Heavy Profile 1-7 1/2-28" $20 off $200+. Use code SEPT20Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup. These barrels machined by Faxon, fit early... ... more | go to store |
Brownells Brn-4 Stripped Barrels Chrome Lined - Brn-4 13.7" Barrel Medium Chrome Lined/Phosphate 5.5 $20 off $200+. Use code SEPT20Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup.These barrels machined by Faxon, fit early... ... more | go to store |
Brownells Brn-4 Stripped Barrels Chrome Lined - Brn-4 16" Barrel Medium Chrome Lined/Phosphate 5.56x $20 off $200+. Use code SEPT20Brownells BRN-4 HK 416 compatible barrels, available in a variety of lengths and two contours. Historically extremely hard to procure, HK 416 compatible barrels are now available as part of the BRN-4 lineup.These barrels machined by Faxon, fit early... ... more | go to store |
Brownells Brn-4 416 Gas Blocks - Brn-4 416 Type Gas Block For 14.5/16in Barrels New Manufacture Gas Blocks for 416 Type Barrels & Firearms These new production 416 type Gas Blocks are machined from billet steel to provide long life, during the most extreme use. To ensure high performance, the Gas Blocks are machined from 4140/42... ... more | go to store |
Brownells Brn-4 Assembled Upper Receivers - Brn-4 14.5" 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 | go to store |
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 | 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 | go to store |
Brownells Brn-4 416 Gas Blocks - Brn-4 416 Type Gas Block For 10.4in Barrels New Manufacture Gas Blocks for 416 Type Barrels & Firearms These new production 416 type Gas Blocks are machined from billet steel to provide long life, during the most extreme use. To ensure high performance, the Gas Blocks are machined from 4140/42... ... more | go to store |
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 | go to store |
Brownells Brn-4� Firing Pin Spring - Brn-4 Firing Pin Spring Replacement or spare part for the BRN-4 Bolt Carrier Group. Handy to have on-hand for a backup parts kit. Only fits Brownells BRN-4 Bolt Carrier Group. Mfg: Brownells ... more | go to store |
Brownells Brn-4� Bolt Assembly - Brn-4/416 Bolt Assembly Replacement or spare Bolt Assembly for the Brownells BRN-4. Completely assembled with ejector and extractor. Black nitride finished exterior makes for an extremely hard and durable part. Compatible with HK416 and MR556 rifles. Nitride finish Complete... ... more | 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 | go to store |
Brownells Brn-4 Gas Block Coil Pins 2-Pack - Brn-4 Gas Block Coil Pins, 2-Pack Gas block coil pins for the BRN-4. These pins are the correct size pins to use with the Brownells BRN-4 gas blocks and all the BRN-4 barrels. These pins will also work with the HK416/MR556 platform as well. Packaged two per pack. Mfg: Brownells ... more | go to store |
Brownells Brn-4/Hk416 Compatible Piston Assembly - Brn-4 416 Compatible Piston Rod Assembly U.S. made gas piston assembly for the Heckler & Koch 416, 417, MR556, MR762, G28, G36 and SL8 firearms. High quality replacement or build component. Stainless steel piston, includes gas rings. Mfg: Brownells ... more | go to store |
Brownells Brn-4� Firing Pin - Brn-4 Firing Pin Replacement or spare part for BRN-4 bolt carrier groups. Chrome plated finish to provide corrosion resistance and lubricity. Use only with the BRN-4 bolt carrier group. Mfg: Brownells ... more | go to store |
Brownells Brn-4/Hk416 Compatible Piston Rod Assembly - Brn-4 416 Compatible Operating Rod Assembly U.S. made operating rod assembly for the Heckler & Koch 416, 417, MR556, MR762 and G28 firearms. High quality replacement or build component. Includes complete operating rod assembly with spring installed. Mfg: Brownells ... more | go to store |
Brownells Brn-4/Hk416 Compatible Gas Rings - Brn-4 416 Gas Ring 3 Pack U.S. made gas rings for the Heckler & Koch 416, 417, MR556, MR762, G28, G36 and SL8 firearms. Includes the 3 needed for a complete installation or replacement of worn out rings. Mfg: Brownells ... more | go to store |
The BRN-4 Barrel Nut is the perfect barrel nut for your BRN-4, HK416, or MR556 built. Machined to exact dimensions to work with HK style handguards. Recommended Barrel Nut Torque: 50-80 ft/lbs Mfg: Brownells ... more | go to store |
Brownells Brn-4 Barrel Nut Wrench The Correct Tool for Safe Installation/Removal of Barrel Nuts on H&K Rifles as well as BRN-4 Rifles! This wrench is a necessary tool if you need to assemble one (or several) of our BRN-4 setups. Actually this tool is a must-have item for anybody who... ... more | go to store |
Brownells Brn-4 Buffer Retainer The BRN-4 Buffer Retainer is the perfect buffer retainer for HK416 or MR556 type firearms. Machined from stainless steel to exacting dimensions. Will not work in AR-15/M16 firearms. BRN-4 or HK416/MR556 lower receiver with roll pin retention of the... ... more | 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 | go to store |
Brownells Ar-15 12.7" A1 Carbine Barrel Assembly - Ar-15 A1 12.7 Carbine Barrel Assembly 1-7 Fsb $20 off $200+. Use code SEPT20Introducing the Brownell's Retro A1 12.7" carbine length barrel assembly. Chambered in 5.56x45mm NATO, the chrome lined barrel is available with your choice of 1-7" or 1-12" rifling and finished in black phosphate with an overall length of 12.7".... ... more | go to store |
Brownells Ar-15 12.7" A1 Carbine Barrel Assembly - Ar-15 12.7" A1 Carbine Barrel 1-12 Twist Assembly $20 off $200+. Use code SEPT20Introducing the Brownell's Retro A1 12.7" carbine length barrel assembly. Chambered in 5.56x45mm NATO, the chrome lined barrel is available with your choice of 1-7" or 1-12" rifling and finished in black phosphate with an overall length of 12.7".... ... more | 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 | 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 | go to store |
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