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Brownells BRN-15 13.70" Railed Upper 5.56x45mm 1:7 Mid-Length no BCG&CH, Black
| SKU | 51655211360 |
|---|---|
| Brand | Brownells |
| MPN | 4027-3410-B3 |
| UPC | 050806000247 |
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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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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


