Brownells Brn-4 5.56Mm 16'' Med Bbl Complete Upper W/13.5'' Handguard

Elevate your shooting experience with the Brownells BRN-4 5.56mm Complete Upper. Built from all-new components with precision engineering, this upper receiver is designed for those who demand performance, reliability, and versatility from their firearms. Imagine the satisfaction of simply mating this complete upper to your AR-15 lower and being instantly prepared for a day at the range or a competition. Whether you’re honing your skills or seeking long-range accuracy, the BRN-4 equips you with everything you need to excel in any shooting scenario.

The BRN-4 defies industry standards with its state-of-the-art design and meticulous attention to detail. The heart of this complete upper is an innovative bolt carrier group, crafted from one piece of forged 8620 steel, paired with a precision-machined bolt from 9310 tool steel, headspaced for reliability. Available with either a medium or heavy profile barrel, the versatile configurations offer you the best option suited for diverse shooting preferences. Opting for the heavy profile guarantees stability for precision shooting, while the medium profile combines lightweight handling with exceptional heat dispersion to maintain accuracy.

Designed with the modern shooter in mind, the 13.5-inch Midwest Industries handguard strikes a balance between agility and versatility. With multiple MLOK attachment points and a full-length picatinny rail, you’re empowered to customize your setup exactly to your liking. Vented forward gas blocks further enhance your shooting experience by reducing rearward gas, ensuring a smooth operation with minimal recoil, allowing for quick follow-up shots.

The BRN-4 doesn’t just perform; it looks exceptional too, finished with a matte black hard coat anodizing that not only protects the aluminum from wear but also gives it a sleek, professional appearance. Each upper assembly is test-fired before packaging, demonstrating Brownells’ commitment to quality and performance. Get ready to redefine your shooting experience, whether you are at the range, in the field, or partaking in competition. The Brownells BRN-4 Complete Upper is not just an accessory, it’s your gateway to elite performance.

Key Features

• Complete upper receiver for easy installation on AR-15 lower
• Precision machined from high-quality materials
• Available with 16-inch barrel featuring 13.5-inch handguard
• Multiple MLOK attachment points for customization

Technical Specifications

What's in the Box

• Brownells BRN-4 Complete Upper Assembly
• Magpul ejection port cover
• Mil-spec charging handle

Compatibility & Requirements

• Compatible with standard AR-15 lower receivers
• Recommend H1 or H2 recoil buffer with carbine recoil spring

Dimensions & Weight