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BROWNELLS
BRN-15 UPPER RECEIVERS 5.56MM NATO

050806000223 430105078
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.
429.9 459.9 4 GBP
Product no.: 430105078
BROWNELLS BRN-15 16" UPPER RECEIVER ASSEMBLY .750" GAS BLOCK 5.56MM
Mfr Part: 4027-3410-B1 050806000223 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.
459.9 GBP 0 £459.90 *
Is a 'Call to order' product.
Not available.
Specs: 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

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 16" nitride finished barrel, chambered in 5.56x45mm NATO, and a 1-7 twist rate.
  2. It features a unique MLOK handguard, anti-rotation tabs, and is designed for customization with the user's choice of bolt carrier group and charging handle.
  3. The upper receiver is forged from 7075-T6 aluminum, hardcoat anodized, and includes M4 feed ramps, but does not come with a bolt carrier group or charging handle.

Attributes

Cartridge: 5.56 x 45 Colour: Black Contour: Government Finish: Anodized Length: 16'' Make: AR-15 Muzzle: 1/2-28 Style: Assembled Twist: 1-7 Delivery weight: 1.769kg

Item details

Made in USA
US export classification: I(g)



Product no.: 430105079
BROWNELLS BRN-15 16" UPPER RECEIVER ASSEMBLY .625" GAS BLOCK 5.56MM
Mfr Part: 4027-3410-B2 050806000230 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.
459.9 GBP 27 £459.90 *
Is a 'Call to order' product.
Not available.
Specs: 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.: 430105080
BROWNELLS BRN-15 13.7" UPPER RECEIVER ASSEMBLY .750" GAS BLOCK 5.56MM 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.
429.9 GBP 0 £429.90 *
Is a 'Call to order' product.
Not available.
Specs: 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.: 430105081
BROWNELLS BRN-15 11.5" UPPER RECEIVER ASSEMBLY .750" GAS BLOCK 5.56MM 050806000254 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.
429.9 GBP 30 £429.90 *
Is a 'Call to order' product.
Not available.
Specs: 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

🔫 Build your dream AR-15 with Brownells BRN-15 Upper Receiver Assembly! High-quality 5.56 NATO, anodized finish, MLOK handguard. Learn more & get started! 🛠️

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.