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050806500709 080001439
Brownells 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 generations of HK® 416 upper receivers and components.  They are the perfect fit with the BRN-4 bolt carrier group and gas block (search “BRN-4” for all parts).  Available in common barrel lengths of 10.4, 14.5 and 16 inch, these barrels are suitable for any need.  You can select the classic “heavy” profile, which is similar to the profile found on earlier HK® 416 models, ensuring barrel rigidity with minimal flex, or you can pick the new “medium” profile, which saves weight and makes the rifle quite handy.  Barrels are button rifled with a 1-7 twist and have commonly used ½-28 muzzle threads for the attachment of the muzzle device of your choice.  A deep black nitride finish provides an extremely hard exterior and interior, that is easy to clean.  The longer barrel extension of the BRN-4 allows for a robust matchup to the upper receiver, and a simple install with the BRN-4 barrel nut (430-100-141).  5.56x45mm NATO chamberings allow for a wide variety of commercially found ammunition to function, as well as 223 Remington cartridges.   No need to worry about picking the right gas system length, as all of these barrels have the same piston rod assembly (078-000-644), just be sure to pick the correct BRN-4 gas block to match your overall barrel length, 078-000-708 & 078-000-709).  Be sure to pick up the gas block coil pins for final assembly as well (430-103-127).  Recommended Barrel Nut Torque: 50-80 ft/lbs.  
304.9 304.9 6 GBP
Product no.: 080001439
BROWNELLS BRN-4 10.4" BARREL HEAVY PROFILE 1-7 1/2-28"
Mfr Part: BN-BRN4556-10.4 050806500709 Brownells 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 generations of HK® 416 upper receivers and components. They are the perfect fit with the BRN-4 bolt carrier group and gas block (search “BRN-4” for all parts). Available in common barrel lengths of 10.4, 14.5 and 16 inch, these barrels are suitable for any need. You can select the classic “heavy” profile, which is similar to the profile found on earlier HK® 416 models, ensuring barrel rigidity with minimal flex, or you can pick the new “medium” profile, which saves weight and makes the rifle quite handy. Barrels are button rifled with a 1-7 twist and have commonly used ½-28 muzzle threads for the attachment of the muzzle device of your choice. A deep black nitride finish provides an extremely hard exterior and interior, that is easy to clean. The longer barrel extension of the BRN-4 allows for a robust matchup to the upper receiver, and a simple install with the BRN-4 barrel nut (430-100-141). 5.56x45mm NATO chamberings allow for a wide variety of commercially found ammunition to function, as well as 223 Remington cartridges. No need to worry about picking the right gas system length, as all of these barrels have the same piston rod assembly (078-000-644), just be sure to pick the correct BRN-4 gas block to match your overall barrel length, 078-000-708 & 078-000-709). Be sure to pick up the gas block coil pins for final assembly as well (430-103-127). Recommended Barrel Nut Torque: 50-80 ft/lbs.
304.9 GBP 36 £304.90 *
Is a 'Call to order' product.
Delivery time approx. 7-14 days.
More than 10 pieces in USA warehouse
Specs: Cartridge: 5.56 x 45 Contour: Heavy Finish: Black Nitride Gas System Length: 416 Length: 10.4'' Make: Heckler & Koch, Brownells Model: BRN-4 Muzzle Threads: 1/2-28 Twist: 1-7

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. Brownells BRN-4 barrels are HK® 416 compatible, available in heavy and medium profiles, and come in lengths of 10.4, 14.5, and 16 inches.
  2. These barrels are button rifled with a 1-7 twist, have a black nitride finish, and feature ½-28 muzzle threads for attaching various devices.
  3. The barrels are designed for easy installation with the BRN-4 barrel nut and are chambered in 5.56x45mm NATO, also accommodating .223 Remington cartridges.

Attributes

Cartridge: 5.56 x 45 Contour: Heavy Finish: Black Nitride Gas System Length: 416 Length: 10.4'' Make: Brownells,Heckler & Koch Model: BRN-4 Muzzle Threads: 1/2-28 Twist: 1-7 Delivery weight: 0.522kg Shipping height: 25mm Shipping width: 25mm Shipping length: 286mm UPC : 050806500709

Item details

Made in USA
US export classification: 0A501.c




Product no.: 080001440
BROWNELLS BRN-4 10.4" BARREL MEDIUM PROFILE 1-7 1/2-28"
Mfr Part: BN-BRN4556-10.4 050806500716 Brownells 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 generations of HK® 416 upper receivers and components. They are the perfect fit with the BRN-4 bolt carrier group and gas block (search “BRN-4” for all parts). Available in common barrel lengths of 10.4, 14.5 and 16 inch, these barrels are suitable for any need. You can select the classic “heavy” profile, which is similar to the profile found on earlier HK® 416 models, ensuring barrel rigidity with minimal flex, or you can pick the new “medium” profile, which saves weight and makes the rifle quite handy. Barrels are button rifled with a 1-7 twist and have commonly used ½-28 muzzle threads for the attachment of the muzzle device of your choice. A deep black nitride finish provides an extremely hard exterior and interior, that is easy to clean. The longer barrel extension of the BRN-4 allows for a robust matchup to the upper receiver, and a simple install with the BRN-4 barrel nut (430-100-141). 5.56x45mm NATO chamberings allow for a wide variety of commercially found ammunition to function, as well as 223 Remington cartridges. No need to worry about picking the right gas system length, as all of these barrels have the same piston rod assembly (078-000-644), just be sure to pick the correct BRN-4 gas block to match your overall barrel length, 078-000-708 & 078-000-709). Be sure to pick up the gas block coil pins for final assembly as well (430-103-127). Recommended Barrel Nut Torque: 50-80 ft/lbs.
304.9 GBP 315 £304.90 *
Is a 'Call to order' product.
Delivery time approx. 7-14 days.
More than 10 pieces in USA warehouse
Specs: Cartridge: 5.56 x 45 Contour: Medium Finish: Black Nitride Gas System Length: 416 Length: 10.4'' Make: Heckler & Koch, Brownells Model: HK416, MR556, BRN-4 Muzzle Threads: 1/2-28 Twist: 1-7

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. Brownells BRN-4 barrels are compatible with HK® 416, machined by Faxon, and come in 10.4", 14.5", and 16" lengths with "heavy" or "medium" profiles.
  2. These 5.56x45mm NATO barrels feature a 1-7 twist, ½-28 muzzle threads, and a durable black nitride finish, suitable for both military and commercial ammunition.
  3. Installation is streamlined with a longer barrel extension, BRN-4 barrel nut, and requires the correct BRN-4 gas block and gas block coil pins for the chosen barrel length.

Attributes

Cartridge: 5.56 x 45 Contour: Medium Finish: Black Nitride Gas System Length: 416 Length: 10.4'' Make: Brownells,Heckler & Koch Model: BRN-4,MR556,HK416 Muzzle Threads: 1/2-28 Twist: 1-7 Delivery weight: 0.499kg Shipping height: 25mm Shipping width: 25mm Shipping length: 286mm UPC : 050806500716

Item details

Made in USA
US export classification: 0A501.c

Product no.: 080001441
BROWNELLS BRN-4 14.5" BARREL HEAVY PROFILE 1-7 1/2-28"
Mfr Part: BN-BRN4556-14.5 050806500723 Brownells 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 generations of HK® 416 upper receivers and components. They are the perfect fit with the BRN-4 bolt carrier group and gas block (search “BRN-4” for all parts). Available in common barrel lengths of 10.4, 14.5 and 16 inch, these barrels are suitable for any need. You can select the classic “heavy” profile, which is similar to the profile found on earlier HK® 416 models, ensuring barrel rigidity with minimal flex, or you can pick the new “medium” profile, which saves weight and makes the rifle quite handy. Barrels are button rifled with a 1-7 twist and have commonly used ½-28 muzzle threads for the attachment of the muzzle device of your choice. A deep black nitride finish provides an extremely hard exterior and interior, that is easy to clean. The longer barrel extension of the BRN-4 allows for a robust matchup to the upper receiver, and a simple install with the BRN-4 barrel nut (430-100-141). 5.56x45mm NATO chamberings allow for a wide variety of commercially found ammunition to function, as well as 223 Remington cartridges. No need to worry about picking the right gas system length, as all of these barrels have the same piston rod assembly (078-000-644), just be sure to pick the correct BRN-4 gas block to match your overall barrel length, 078-000-708 & 078-000-709). Be sure to pick up the gas block coil pins for final assembly as well (430-103-127). Recommended Barrel Nut Torque: 50-80 ft/lbs.
304.9 GBP 394 £304.90 *
Is a 'Call to order' product.
Delivery time approx. 7-14 days.
More than 10 pieces in USA warehouse
Specs: Cartridge: 5.56 x 45 Contour: Heavy Finish: Black Nitride Gas System Length: 416 Length: 14.5'' Make: Heckler & Koch, Brownells Model: HK416, MR556, BRN-4 Muzzle Threads: 1/2-28 Twist: 1-7

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. Brownells BRN-4 barrels are HK® 416 compatible, offered in heavy and medium profiles, and are machined by Faxon for early generation HK® 416 upper receivers.
  2. These 5.56x45mm NATO barrels come in 14.5" length with a 1-7 twist rate, button rifling, and ½-28 muzzle threads for various muzzle devices.
  3. The barrels feature a black nitride finish for durability and ease of cleaning, and require the BRN-4 gas block and barrel nut for installation.

Attributes

Cartridge: 5.56 x 45 Contour: Heavy Finish: Black Nitride Gas System Length: 416 Length: 14.5'' Make: Heckler & Koch,Brownells Model: MR556,HK416,BRN-4 Muzzle Threads: 1/2-28 Twist: 1-7 Delivery weight: 0.612kg Shipping height: 38mm Shipping width: 38mm Shipping length: 368mm UPC : 050806500723

Item details

Made in USA
US export classification: 0A501.c

Product no.: 080001442
BROWNELLS BRN-4 14.5" BARREL MEDIUM PROFILE 1-7 1/2-28"
Mfr Part: BN-BRN4556-14.5 050806500747 Brownells 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 generations of HK® 416 upper receivers and components. They are the perfect fit with the BRN-4 bolt carrier group and gas block (search “BRN-4” for all parts). Available in common barrel lengths of 10.4, 14.5 and 16 inch, these barrels are suitable for any need. You can select the classic “heavy” profile, which is similar to the profile found on earlier HK® 416 models, ensuring barrel rigidity with minimal flex, or you can pick the new “medium” profile, which saves weight and makes the rifle quite handy. Barrels are button rifled with a 1-7 twist and have commonly used ½-28 muzzle threads for the attachment of the muzzle device of your choice. A deep black nitride finish provides an extremely hard exterior and interior, that is easy to clean. The longer barrel extension of the BRN-4 allows for a robust matchup to the upper receiver, and a simple install with the BRN-4 barrel nut (430-100-141). 5.56x45mm NATO chamberings allow for a wide variety of commercially found ammunition to function, as well as 223 Remington cartridges. No need to worry about picking the right gas system length, as all of these barrels have the same piston rod assembly (078-000-644), just be sure to pick the correct BRN-4 gas block to match your overall barrel length, 078-000-708 & 078-000-709). Be sure to pick up the gas block coil pins for final assembly as well (430-103-127). Recommended Barrel Nut Torque: 50-80 ft/lbs.
304.9 GBP 693 £304.90 *
Is a 'Call to order' product.
Delivery time approx. 7-14 days.
More than 10 pieces in USA warehouse
Specs: Cartridge: 5.56 x 45 Contour: Medium Finish: Black Nitride Gas System Length: 416 Length: 14.5'' Make: Heckler & Koch, Brownells Model: HK416, MR556, BRN-4 Muzzle Threads: 1/2-28 Twist: 1-7

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. Brownells BRN-4 barrels are HK® 416 compatible, available in various lengths and profiles, and machined by Faxon.
  2. These barrels feature a 1-7 twist rate, ½-28 muzzle threads, and a durable black nitride finish.
  3. Designed for easy installation, they match with BRN-4 bolt carrier group, gas block, and require specific BRN-4 barrel nut and gas block coil pins.

Attributes

Cartridge: 5.56 x 45 Contour: Medium Finish: Black Nitride Gas System Length: 416 Length: 14.5'' Make: Brownells,Heckler & Koch Model: MR556,BRN-4,HK416 Muzzle Threads: 1/2-28 Twist: 1-7 Delivery weight: 0.59kg Shipping height: 25mm Shipping width: 25mm Shipping length: 387mm UPC : 050806500747

Item details

Made in USA
US export classification: 0A501.c

Product no.: 080001443
BROWNELLS BRN-4 16" BARREL HEAVY PROFILE 1-7 1/2-28"
Mfr Part: BN-BRN4556-16H 050806500754 Brownells 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 generations of HK® 416 upper receivers and components. They are the perfect fit with the BRN-4 bolt carrier group and gas block (search “BRN-4” for all parts). Available in common barrel lengths of 10.4, 14.5 and 16 inch, these barrels are suitable for any need. You can select the classic “heavy” profile, which is similar to the profile found on earlier HK® 416 models, ensuring barrel rigidity with minimal flex, or you can pick the new “medium” profile, which saves weight and makes the rifle quite handy. Barrels are button rifled with a 1-7 twist and have commonly used ½-28 muzzle threads for the attachment of the muzzle device of your choice. A deep black nitride finish provides an extremely hard exterior and interior, that is easy to clean. The longer barrel extension of the BRN-4 allows for a robust matchup to the upper receiver, and a simple install with the BRN-4 barrel nut (430-100-141). 5.56x45mm NATO chamberings allow for a wide variety of commercially found ammunition to function, as well as 223 Remington cartridges. No need to worry about picking the right gas system length, as all of these barrels have the same piston rod assembly (078-000-644), just be sure to pick the correct BRN-4 gas block to match your overall barrel length, 078-000-708 & 078-000-709). Be sure to pick up the gas block coil pins for final assembly as well (430-103-127). Recommended Barrel Nut Torque: 50-80 ft/lbs.
304.9 GBP 324 £304.90 *
Is a 'Call to order' product.
Delivery time approx. 7-14 days.
More than 10 pieces in USA warehouse
Specs: Cartridge: 5.56 x 45 Contour: Heavy Finish: Black Nitride Gas System Length: 416 Length: 16'' Make: Heckler & Koch, Brownells Model: HK416, MR556, BRN-4 Muzzle Threads: 1/2-28 Twist: 1-7

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. Brownells BRN-4 barrels are HK® 416 compatible, offered in heavy and medium profiles, with lengths including 16 inches.
  2. These barrels feature a 1-7 twist rate, ½-28 muzzle threads, and a durable black nitride finish.
  3. Designed for easy installation, they match with BRN-4 bolt carrier groups and gas blocks, and are chambered in 5.56x45mm NATO.

Attributes

Cartridge: 5.56 x 45 Contour: Heavy Finish: Black Nitride Gas System Length: 416 Length: 16'' Make: Brownells,Heckler & Koch Model: MR556,HK416,BRN-4 Muzzle Threads: 1/2-28 Twist: 1-7 Delivery weight: 0.522kg Shipping height: 32mm Shipping width: 32mm Shipping length: 432mm UPC : 050806500754

Item details

Made in USA
US export classification: 0A501.c

Product no.: 080001444
BROWNELLS BRN-4 16" BARREL MEDIUM PROFILE 1-7 1/2-28"
Mfr Part: BN-BRN4556-16M 050806500761 Brownells 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 generations of HK® 416 upper receivers and components. They are the perfect fit with the BRN-4 bolt carrier group and gas block (search “BRN-4” for all parts). Available in common barrel lengths of 10.4, 14.5 and 16 inch, these barrels are suitable for any need. You can select the classic “heavy” profile, which is similar to the profile found on earlier HK® 416 models, ensuring barrel rigidity with minimal flex, or you can pick the new “medium” profile, which saves weight and makes the rifle quite handy. Barrels are button rifled with a 1-7 twist and have commonly used ½-28 muzzle threads for the attachment of the muzzle device of your choice. A deep black nitride finish provides an extremely hard exterior and interior, that is easy to clean. The longer barrel extension of the BRN-4 allows for a robust matchup to the upper receiver, and a simple install with the BRN-4 barrel nut (430-100-141). 5.56x45mm NATO chamberings allow for a wide variety of commercially found ammunition to function, as well as 223 Remington cartridges. No need to worry about picking the right gas system length, as all of these barrels have the same piston rod assembly (078-000-644), just be sure to pick the correct BRN-4 gas block to match your overall barrel length, 078-000-708 & 078-000-709). Be sure to pick up the gas block coil pins for final assembly as well (430-103-127). Recommended Barrel Nut Torque: 50-80 ft/lbs.
304.9 GBP 687 £304.90 *
Is a 'Call to order' product.
Delivery time approx. 7-14 days.
More than 10 pieces in USA warehouse
Specs: Cartridge: 5.56 x 45 Contour: Medium Finish: Black Nitride Gas System Length: 416 Length: 16'' Make: Heckler & Koch, Brownells Model: HK416, MR556, BRN-4 Muzzle Threads: 1/2-28 Twist: 1-7

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. Brownells BRN-4 barrels are HK® 416 compatible, available in various lengths with "heavy" or "medium" profiles, and are machined by Faxon.
  2. The barrels feature a 1-7 twist rate, ½-28 muzzle threads, and a black nitride finish for durability and ease of cleaning.
  3. Designed for 5.56x45mm NATO and .223 Remington cartridges, these barrels come with a simple installation process using the BRN-4 barrel nut.

Attributes

Cartridge: 5.56 x 45 Contour: Medium Finish: Black Nitride Gas System Length: 416 Length: 16'' Make: Heckler & Koch,Brownells Model: MR556,HK416,BRN-4 Muzzle Threads: 1/2-28 Twist: 1-7 Delivery weight: 0.649kg Shipping height: 51mm Shipping width: 76mm Shipping length: 432mm UPC : 050806500761

Item details

Made in USA
US export classification: 0A501.c

Upgrade your rifle with the BRN-4 10.4" Heavy Profile Barrel. 🔥 Compatible with HK® 416, featuring a durable black nitride finish and 1-7 twist.

Brownells 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 generations of HK® 416 upper receivers and components.  They are the perfect fit with the BRN-4 bolt carrier group and gas block (search “BRN-4” for all parts).  Available in common barrel lengths of 10.4, 14.5 and 16 inch, these barrels are suitable for any need.  You can select the classic “heavy” profile, which is similar to the profile found on earlier HK® 416 models, ensuring barrel rigidity with minimal flex, or you can pick the new “medium” profile, which saves weight and makes the rifle quite handy.  Barrels are button rifled with a 1-7 twist and have commonly used ½-28 muzzle threads for the attachment of the muzzle device of your choice.  A deep black nitride finish provides an extremely hard exterior and interior, that is easy to clean.  The longer barrel extension of the BRN-4 allows for a robust matchup to the upper receiver, and a simple install with the BRN-4 barrel nut (430-100-141).  5.56x45mm NATO chamberings allow for a wide variety of commercially found ammunition to function, as well as 223 Remington cartridges.   No need to worry about picking the right gas system length, as all of these barrels have the same piston rod assembly (078-000-644), just be sure to pick the correct BRN-4 gas block to match your overall barrel length, 078-000-708 & 078-000-709).  Be sure to pick up the gas block coil pins for final assembly as well (430-103-127).  Recommended Barrel Nut Torque: 50-80 ft/lbs.  
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