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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 BARRELS 5.56X45MM - BROWNELLS BRN-4 10.4" BARREL HEAVY PROFILE 1-7 1/2-28"

050806500709 080001439

Variations:

BROWNELLS BRN-4 10.4" BARREL HEAVY PROFILE 1-7 1/2-28"

304.9 GBP 20 £304.90 *

Contour: Heavy Length: 10.4'' Model: BRN-4 Product no.: 080001439

In stock - Is a 'Call to order' product.

304.9 GBP 20 £304.90 *

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BROWNELLS BRN-4 10.4" BARREL MEDIUM PROFILE 1-7 1/2-28"

304.9 GBP 288 £304.90 *

Contour: Medium Length: 10.4'' Model: HK416, MR556, BRN-4 Product no.: 080001440

In stock - Is a 'Call to order' product.

304.9 GBP 288 £304.90 *

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BROWNELLS BRN-4 14.5" BARREL HEAVY PROFILE 1-7 1/2-28"

304.9 GBP 387 £304.90 *

Contour: Heavy Length: 14.5'' Model: HK416, MR556, BRN-4 Product no.: 080001441

In stock - Is a 'Call to order' product.

304.9 GBP 387 £304.90 *

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BROWNELLS BRN-4 14.5" BARREL MEDIUM PROFILE 1-7 1/2-28"

304.9 GBP 685 £304.90 *

Contour: Medium Length: 14.5'' Model: HK416, MR556, BRN-4 Product no.: 080001442

In stock - Is a 'Call to order' product.

304.9 GBP 685 £304.90 *

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BROWNELLS BRN-4 16" BARREL HEAVY PROFILE 1-7 1/2-28"

304.9 GBP 318 £304.90 *

Contour: Heavy Length: 16'' Model: HK416, MR556, BRN-4 Product no.: 080001443

In stock - Is a 'Call to order' product.

304.9 GBP 318 £304.90 *

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BROWNELLS BRN-4 16" BARREL MEDIUM PROFILE 1-7 1/2-28"

304.9 GBP 683 £304.90 *

Contour: Medium Length: 16'' Model: HK416, MR556, BRN-4 Product no.: 080001444

In stock - Is a 'Call to order' product.

304.9 GBP 683 £304.90 *

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304.9 304.9 6 GBP

304.9 GBP £304.90

Prices inclusive of duty & VAT.

Product no.: 080001439

Mfr. No.: 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.

In stock - Is a 'Call to order' product.

Is a 'Call to order' product.

Wish List Ask question

Requires order by phone

Variations:

BROWNELLS BRN-4 10.4" BARREL HEAVY PROFILE 1-7 1/2-28"

304.9 GBP 20 £304.90 *

Contour: Heavy Length: 10.4'' Model: BRN-4 Product no.: 080001439

In stock - Is a 'Call to order' product.

304.9 GBP 20 £304.90 *

Add to shopping list

Ask question

BROWNELLS BRN-4 10.4" BARREL MEDIUM PROFILE 1-7 1/2-28"

304.9 GBP 288 £304.90 *

Contour: Medium Length: 10.4'' Model: HK416, MR556, BRN-4 Product no.: 080001440

In stock - Is a 'Call to order' product.

304.9 GBP 288 £304.90 *

Add to shopping list

Ask question

BROWNELLS BRN-4 14.5" BARREL HEAVY PROFILE 1-7 1/2-28"

304.9 GBP 387 £304.90 *

Contour: Heavy Length: 14.5'' Model: HK416, MR556, BRN-4 Product no.: 080001441

In stock - Is a 'Call to order' product.

304.9 GBP 387 £304.90 *

Add to shopping list

Ask question

BROWNELLS BRN-4 14.5" BARREL MEDIUM PROFILE 1-7 1/2-28"

304.9 GBP 685 £304.90 *

Contour: Medium Length: 14.5'' Model: HK416, MR556, BRN-4 Product no.: 080001442

In stock - Is a 'Call to order' product.

304.9 GBP 685 £304.90 *

Add to shopping list

Ask question

BROWNELLS BRN-4 16" BARREL HEAVY PROFILE 1-7 1/2-28"

304.9 GBP 318 £304.90 *

Contour: Heavy Length: 16'' Model: HK416, MR556, BRN-4 Product no.: 080001443

In stock - Is a 'Call to order' product.

304.9 GBP 318 £304.90 *

Add to shopping list

Ask question

BROWNELLS BRN-4 16" BARREL MEDIUM PROFILE 1-7 1/2-28"

304.9 GBP 683 £304.90 *

Contour: Medium Length: 16'' Model: HK416, MR556, BRN-4 Product no.: 080001444

In stock - Is a 'Call to order' product.

304.9 GBP 683 £304.90 *

Add to shopping list

Ask question

Description:

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.

Restrictions

Is a 'Call to order' product.

Top takeaways

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.
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.
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''
Model: BRN-4
Muzzle Threads: 1/2-28
Twist: 1-7
Weapon type: Brownells,Heckler & Koch
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

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