HOMEParts & AccessoriesRifle PartsSmall Rifle PartsBrownells BRN-4 Barrels 5.56x45mm - High-Quality Performance
Brownells BRN-4 Barrels 5.56x45mm - High-Quality Performance - Brownells - 5.56 X 45 for sale at TheGunDock
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Brownells BRN-4 Barrels 5.56x45mm - High-Quality Performance

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SKU: Cr821997
UPC: 050806500716
Model: BN-BRN4556-10.4M
New ✓ In Stock — Ships in 1-3 Days

Brownells | BN-BRN4556-10.4M | MPN: BN-BRN4556-10.4M | UPC: 050806500716 | 5.56 X 45 | 10.40" Barrel | Black Nitride | 1.10 lbs | Threaded 1/2-28

The Brownells BRN-4 Barrel is a 10.4" AR-platform barrel chambered in 5.56x45mm, featuring a black nitride finish and 1/2-28 threading for a durable, corrosion-resistant option in a compact SBR-length profile.

  • Manufacturer: Brownells
  • Model: BN-BRN4556-10.4M
  • MPN: BN-BRN4556-10.4M
  • UPC: 050806500716
  • SKU: Cr821997
  • Caliber: 5.56 X 45
  • Barrel Length: 10.40 inches
  • Finish: Black Nitride
  • Weight: 1.10 lbs
  • Thread Pitch: 1/2-28
  • Twist Rate: 1-7
  • Barrel Profile: Medium
  • FFL Required: No
5.56 X 45 10.40" Barrel 1.10 oz Threaded 1/2-28 Black Nitride

Technical Specifications

Caliber 5.56 X 45
Barrel Length 10.40"
Finish Black Nitride
Weight 1.10 oz
Thread Pitch 1/2-28
Twist Rate 1-7
Manufacturer Brownells
Model BN-BRN4556-10.4M
SKU Cr821997
UPC 050806500716
Availability In Stock

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Shipping & Returns

Shipping Information

  • Orders typically process within 1-2 business days
  • Ships via major carriers with tracking
  • Tracking information provided for all orders
  • Shipping costs calculated at checkout based on weight and destination

Return Policy

  • 30-day return policy on accessories and non-firearms
  • Items must be unused and in original packaging
  • Contact us for return authorization before shipping items back
  • Original shipping costs are non-refundable

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Contact us at 502-272-4859 or submit a question for assistance with shipping or returns.

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