Brownells Brn-15 5.56Mm 16'' Bbl .750'' Gas Block Upper Receiver
When precision meets performance, the Brownells BRN-15 Upper Receiver is born, ready to elevate your shooting experience. Crafted with meticulous attention to detail from the highest-quality components, this 5.56mm Upper Receiver Group provides the perfect foundation for your next rifle build. Imagine stepping onto the range with an upper that not only reflects your personal style but also offers unparalleled reliability and versatility. Designed for enthusiasts who demand the best, the BRN-15 stands out with its innovative features, ensuring you will dominate every shooting scenario, from competitive marksmanship to tactical training.
The heart of the BRN-15 lies in its durable 4150 CMV barrel, chambered in 5.56x45mm NATO, and finished with a nitride treatment for superior corrosion resistance. With a 1:7 twist rate, this barrel accommodates a variety of projectile weights, providing an exceptional accuracy that will impress any shooter. Whether you're honing your skills on the range or tackling a challenging course, this upper receiver delivers consistent performance shot after shot. The larger surface area of the MLOK handguard, which extends past the gas block, offers plenty of rail space for your accessories, enhancing your capability to customize your rifle to suit your needs.
The thoughtful design of the BRN-15 includes a gas block dimple to secure your barrel precisely, ensuring optimal gas flow with every trigger pull. With a lightweight contour option available, you can experience less fatigue on extended days of shooting without sacrificing performance. Large ventilation ports in the handguard rapidly dissipate heat, allowing for sustained fire without the worry of overheating. Coupled with a forged 7075-T6 upper receiver that features M4 feed ramps for smooth feeding, this upper receiver group is built to withstand the rigors of any shooting environment without compromise.
What sets the Brownells BRN-15 apart is not only how it performs but how it feels in the hands of the shooter. The knurled forward assist pin makes functionality seamless during rapid builds and modifications, while its 100% American-made construction ensures you're investing in quality and craftsmanship. As you grow in your shooting journey, the BRN-15 adapts with you, making it your trusted companion in precision marksmanship. It’s more than just a product; it’s a commitment to excellence that will last for years to come.
Key Features
- Chambered in 5.56x45mm NATO
- Available with 16 inch barrel in both Government profile and lightweight contour
- MLOK handguard for enhanced accessory customization
Technical Specifications
| Specification | Detail |
|---|---|
| Barrel Material | 4150 CMV (Chrome Moly Vanadium) |
| Barrel Length | 16 inches |
| Barrel Twist Rate | 1:7 |
| Muzzle Threads | 1/2-28 |
| Muzzle Device | A2 Flash Hider |
| Upper Receiver Material | Forged 7075-T6 Aluminum |
| Upper Receiver Finish | Hardcoat Anodized |
| Feed Ramp Design | M4 Feedramps in upper and barrel extension |
| Barrel Marking | "5.56 NATO 1:7 4150CMV SR" |
| Country of Origin | 100% American Made |
What's in the Box
- Brownells BRN-15 Upper Receiver Group
- User Guide for Installation and Maintenance
Compatibility & Requirements
- Compatible with standard AR-15 lower receivers
- Bolt carrier group and charging handle sold separately
Dimensions & Weight
| Property | Value |
|---|---|
| Weight | 4.5 lbs |