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Rifle Parts Receiver Parts Receivers Upper Receivers BROWNELLS BRN-15 5.56MM 13.7" BBL .750" GAS BLOCK UPPER RECEIVER Support

The BRN-15 Upper Receiver features a durable 5.56 NATO barrel, MLOK handguard, and Mil-Spec construction, perfect for your next custom build.

BROWNELLS BRN-15 5.56MM 13.7" BBL .750" GAS BLOCK UPPER RECEIVER

050806000247 430105080

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Variations
Filters:
Variations:

Variations:

The BRN-15 Upper Receiver features a durable 5.56 NATO barrel, MLOK handguard, and Mil-Spec construction, perfect for your next custom build.
BRN-15 5.56MM 13.7" BBL .750" GAS BLOCK UPPER RECEIVER
422.14 GBP 0 £422.14 *
Not available
Cartridge: 5.56 x 45 Color: Black Contour: Government Finish: Anodized Length: 13.7'' Make: AR-15 Muzzle: 1/2-28 Style: Assembled Twist: 1-7 Product no.: 430105080
Not available
422.14 GBP 0 £422.14 *
The BRN-15 Upper Receiver features a 5.56 NATO barrel, MLOK handguard, and forged construction, perfect for your next custom build.
BRN-15 5.56MM 16" BBL .750" GAS BLOCK UPPER RECEIVER
444.35 GBP 0 £444.35 *
Not available
Cartridge: 5.56 x 45 Color: Black Contour: Government Finish: Anodized Length: 16'' Make: AR-15 Muzzle: 1/2-28 Style: Assembled Twist: 1-7 Product no.: 430105078
Not available
444.35 GBP 0 £444.35 *
The BRN-15 Upper Receiver features a 5.56 NATO barrel, MLOK handguard, and forged Mil-Spec construction, perfect for your next firearm build.
BRN-15 5.56MM 16" BBL .625" GAS BLOCK UPPER RECEIVER
444.35 GBP 0 £444.35 *
Not available
Cartridge: 5.56 x 45 Color: Black Contour: Lightweight Finish: Anodized Length: 16'' Make: AR-15 Muzzle: 1/2-28 Style: Assembled Twist: 1-7 Product no.: 430105079
Not available
444.35 GBP 0 £444.35 *
The BRN-15 Upper Receiver features a 5.56 NATO barrel, MLOK handguard, and Mil-Spec construction, perfect for your next firearm build.
BRN-15 5.56MM 11.5" BBL .750" GAS BLOCK UPPER RECEIVER
414.77 GBP 0 £414.77 *
Not available
Cartridge: 5.56 x 45 Color: Black Contour: Government Finish: Anodized Length: 11.5'' Make: AR-15 Muzzle: 1/2-28 Style: Assembled Twist: 1-7 Product no.: 430105081
Not available
414.77 GBP 0 £414.77 *
414.77 444.35 4 GBP
422.14 GBP £422.14

Prices inclusive of duty & VAT.

Product no.: 430105080

Mfr. No.: 4027-3410-B3

050806000247 Manufactured in the US with the highest quality components, the BRN-15 Upper Receiver Groups are great starts for your next build. Pick your preferred bolt carrier group and charging handle to complete. The BRN-15 Upper Receiver Groups feature a 5.56x45mm NATO chambered, nitride finished barrel, available in several popular lengths. Models are available in a Government, medium profile barrel, with the 16 inch also available in a lightweight contour. Barrels feature a gas block dimple, that the rear gas block screw securely engages. All barrels are stress releived. Unique MLOK handguard extends past the gas block, to provide as much usable real estate as possible. Anti-rotation tabs at the rear of the handguard engage the upper receiver, preventing any cant in relation to the receiver picatinny rail. Large dual screws clamp and pass through the properly torqued barrel nut to ensure the handguard will not slip forward. Large vents are placed towards the rear, to allow both the barrel and handguard to cool more rapidly. Forged Mil-Spec type upper receiver features M4 feed ramps, ejection port cover and forward assist. Forward assist pin is knurled at the front, to ease future swaps. 4150 CMV (Chrome Moly Vanadium) Barrel Chambered in 5.56x45mm NATO 1-7 Barrel Twist 1/2-28 Muzzle Threads A2 Flash Hider Forged 7075-T6 Upper Receivers Hardcoat Anodized Upper Receiver M4 Feedramps in Upper & Barrel Extension Barrels are marked "5.56 NATO 1:7 4150CMV SR" 100% American Made Please note, the 16 inch lightweight features a lock nut on the muzzle device. To remove, secure the lock nut with a wrench, turn towards the rear, and unscrew the flash hider. Does not come with bolt carrier group or charging handle. All NFA Rules Apply.
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414.77 444.35 4 GBP
Description Specification Customers reviews Accessories

BROWNELLS BRN-15 5.56MM 13.7" BBL .750" GAS BLOCK UPPER RECEIVER

422.14 GBP £422.14

Prices inclusive of duty & VAT.

Is a 'Call to order' product.
Requires order by phone

Description:

Discover the ultimate foundation for your next firearm build with the BRN-15 Upper Receiver.

Manufactured in the US with the highest quality components, the BRN-15 Upper Receiver Groups are excellent starting points for your next build. Choose your preferred bolt carrier group and charging handle to complete your setup.

Key Features:

  • Chambered in 5.56x45mm NATO with a nitride finished barrel, available in various popular lengths.
  • Models include a Government profile barrel, with a 16 inch option also available in a lightweight contour.
  • Barrels feature a gas block dimple for secure engagement of the rear gas block screw, ensuring reliability.
  • Unique MLOK handguard extends past the gas block, maximising usable real estate.
  • Anti-rotation tabs at the rear of the handguard engage the upper receiver, preventing any cant in relation to the receiver picatinny rail.
  • Large dual screws clamp and pass through the properly torqued barrel nut to ensure the handguard remains secure.
  • Large vents placed towards the rear allow both the barrel and handguard to cool more rapidly.
  • Forged Mil-Spec type upper receiver features M4 feed ramps, ejection port cover, and forward assist.
  • Forward assist pin is knurled at the front for ease of future swaps.
  • Barrels are marked "5.56 NATO 1:7 4150CMV SR", ensuring quality and specifications.

Specifications:

  • 4150 CMV (Chrome Moly Vanadium) Barrel
  • 1-7 Barrel Twist
  • 1/2-28 Muzzle Threads
  • A2 Flash Hider
  • Forged 7075-T6 Upper Receivers
  • Hardcoat Anodized Upper Receiver
  • M4 Feedramps in Upper & Barrel Extension

100% American Made

Please note, the 16 inch lightweight features a lock nut on the muzzle device. To remove, secure the lock nut with a wrench, turn towards the rear, and unscrew the flash hider.

Does not come with bolt carrier group or charging handle. All NFA Rules Apply.



Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The BRN-15 Upper Receiver Assembly is a high-quality American-made component with a 13.7" nitride finished barrel chambered in 5.56x45mm NATO, featuring a .750" gas block and a 1-7 twist rate.
  2. It includes a unique MLOK handguard that extends past the gas block with anti-rotation tabs and large dual screws for secure attachment, but does not come with a bolt carrier group or charging handle.
  3. The upper receiver is forged from 7075-T6 aluminum, hardcoat anodized, and equipped with M4 feed ramps, an ejection port cover, forward assist, and a knurled forward assist pin for easy swaps.

Attributes

  • Cartridge: 
    5.56 x 45
  • Colour: 
    Black
  • Contour: 
    Government
  • Finish: 
    Anodized
  • Length: 
    13.7''
  • Muzzle: 
    1/2-28
  • Style: 
    Assembled
  • Twist: 
    1-7
  • Weapon type: 
    AR-15
  • Delivery weight: 1.769kg
  • Shipping height: 89mm
  • Shipping width: 89mm
  • Shipping length: 533mm
  • UPC: 050806000247

Item details

Made in USA
US export classification: I(g)

Customers reviews

Customer ratings (0)

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Variations:

The BRN-15 Upper Receiver features a durable 5.56 NATO barrel, MLOK handguard, and Mil-Spec construction, perfect for your next custom build.
BRN-15 5.56MM 13.7" BBL .750" GAS BLOCK UPPER RECEIVER
422.14 GBP 0 £422.14 *
Not available
Cartridge: 5.56 x 45 Color: Black Contour: Government Finish: Anodized Length: 13.7'' Make: AR-15 Muzzle: 1/2-28 Style: Assembled Twist: 1-7 Product no.: 430105080
Not available
422.14 GBP 0 £422.14 *
The BRN-15 Upper Receiver features a 5.56 NATO barrel, MLOK handguard, and forged construction, perfect for your next custom build.
BRN-15 5.56MM 16" BBL .750" GAS BLOCK UPPER RECEIVER
444.35 GBP 0 £444.35 *
Not available
Cartridge: 5.56 x 45 Color: Black Contour: Government Finish: Anodized Length: 16'' Make: AR-15 Muzzle: 1/2-28 Style: Assembled Twist: 1-7 Product no.: 430105078
Not available
444.35 GBP 0 £444.35 *
The BRN-15 Upper Receiver features a 5.56 NATO barrel, MLOK handguard, and forged Mil-Spec construction, perfect for your next firearm build.
BRN-15 5.56MM 16" BBL .625" GAS BLOCK UPPER RECEIVER
444.35 GBP 0 £444.35 *
Not available
Cartridge: 5.56 x 45 Color: Black Contour: Lightweight Finish: Anodized Length: 16'' Make: AR-15 Muzzle: 1/2-28 Style: Assembled Twist: 1-7 Product no.: 430105079
Not available
444.35 GBP 0 £444.35 *
The BRN-15 Upper Receiver features a 5.56 NATO barrel, MLOK handguard, and Mil-Spec construction, perfect for your next firearm build.
BRN-15 5.56MM 11.5" BBL .750" GAS BLOCK UPPER RECEIVER
414.77 GBP 0 £414.77 *
Not available
Cartridge: 5.56 x 45 Color: Black Contour: Government Finish: Anodized Length: 11.5'' Make: AR-15 Muzzle: 1/2-28 Style: Assembled Twist: 1-7 Product no.: 430105081
Not available
414.77 GBP 0 £414.77 *

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