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Brownells BRN-15 13.70" Railed Upper 5.56x45mm 1:7 Mid-Length no BCG&CH, Black
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In stock online

Brownells BRN-15 13.70" Railed Upper 5.56x45mm 1:7 Mid-Length no BCG&CH, Black

Regular Price $425.99 Special Price $382.99
Details
SKU 51655211360
Brand Brownells
MPN 4027-3410-B3
UPC 050806000247
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CA WARNING (Prop 65) & Compliance Information
Please read before purchasing.
This product is fulfilled by a PSA Partner and shipping times may vary.

Product Details

Details

  • Caliber: 5.56x45mm
  • Ecommerce Platform: AR-15
  • Hand Orientation: Right
  • Muzzle Device: Flash Hider
  • Barrel Length: 13.70
  • Barrel Profile: Government
  • Barrel Twist Rate: 1:7
  • Barrel Material: 4150 Alloy Steel
  • Muzzle Thread: 1/2-28
  • Receiver Type: M4 Feed Ramp
  • Receiver Material: 7075-T6 Aluminum Alloy
  • Handguard Type: M-LOK Rail|Picatinny Rail
  • Gas System: Mid-Length
  • Diameter at Gas Block: 0.75

Features

The BRN-15 upper receiver groups, manufactured in the United States with premium components, serve as an excellent foundation for your next build. To complete the assembly, select your preferred Bolt carrier group and charging handle. These upper receiver groups are equipped with a 5.56x45mm chambered barrel, finished with a nitride coating and available in various popular lengths. The barrels a redesigned with a gas block dimple, ensuring secure engagement of the rear gas block screw and are stress-relieved for enhanced durability. The M-LOK handguard is uniquely extended beyond the gas block, maximizing usable space. Anti-rotation tabs at the rear of the handguard engage with the upper receiver maintaining alignment with the receiver's picatinny rail. The handguard is secured with large dual screws that pass through a properly torqued barrel nut, preventing any forward slippage. Additionally, large vents are strategically positioned towards the rear to facilitate rapid cooling of both the barrel and handguard.

  • 4150 chrome moly vanadium (CMV) barrel
  • 5.56x45mm Caliber
  • 1:7 rifling twist rate
  • Thread specification - 1/2-28 muzzle
  • A2 flash suppressor
  • 7075-T6 forged upper receivers
  • Anodized upper receiver with hardcoat finish
  • M4 feedramps in upper receiver and barrel extension
  • Barrels are designated as 5.56x45mm, 1:7 twist, 4150CMV SR
  • Manufactured entirely in the United States
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Compliance

Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Local Law Compliance

Certain firearm parts and accessories, including AR-style upper receivers, are subject to complex and frequently changing federal, state, and local laws and regulations. While an upper receiver may be lawfully sold and shipped as a component, the legality of possessing, assembling, configuring, or using an upper receiver in certain states (e.g., California, Washington State) and localities depends on how it is assembled, combined with other components, and ultimately used. You are solely responsible for ensuring that any assembly, configuration, possession, or use complies with all federal, state, and local laws, including any so-called “assault weapon” bans and short-barreled rifle restrictions. We do not provide legal advice and are not responsible for unlawful configurations or uses.
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