Brownells BRN-4 5.56MM 16'' HEAVY BBL COMPLETE UPPER W/13.5'' HANDGUARD BRN4-CU-16H

Brownells BRN-4 5.56mm 16" Heavy Barrel Complete Upper w/ 13.5" Handguard BRN4-CU-16H Brownells BRN-4 5.56MM 16'' Heavy Barrel Complete Upper w/ 13.5'' Handguard BRN4-CU-16H The Brownells BRN-4 Complete Upper (BRN4-CU-16H) is a fully assembled, ready-to-install upper receiver designed for the Brownells BRN-4 platform. This complete upper features a 16-inch heavy profile barrel and a 13.5-inch handguard, delivering superior durability, heat resistance, and sustained-fire performance for a versatile all-purpose rifle. Short-Stroke Piston Operating System The BRN-4 complete upper utilizes a reliable short-stroke piston system. This design keeps the action significantly cleaner by preventing carbon fouling from entering the receiver, resulting in improved reliability, reduced maintenance, and consistent performance even during high-volume shooting. 16-Inch Heavy Barrel This upper is equipped with a 16-inch heavy profile barrel chambered in 5.56mm. The heavy barrel profile provides increased rigidity and excellent heat dissipation, allowing for better accuracy and longevity during sustained fire. This configuration offers an ideal balance of velocity and durability for general-purpose, tactical, and competition use. 13.5-Inch Handguard The included 13.5-inch handguard provides generous rail space for mounting optics, lights, grips, bipods, and other accessories. Its length pairs well with the 16-inch heavy barrel, offering excellent ergonomics and forward mounting options while maintaining a balanced overall rifle length. Key Features of the Brownells BRN-4 Complete Upper Complete assembled upper receiver 16-inch 5.56mm heavy barrel 13.5-inch handguard included Short-stroke piston system Model Number: BRN4-CU-16H Common Applications BRN-4 and HK416-style builds General purpose and tactical rifles Professional and duty use High-volume training and competition Users requiring maximum barrel durability Benefits for BRN-4 Owners This complete upper offers a convenient, turnkey solution for building or upgrading a BRN-4 rifle. The heavy barrel combined with the short-stroke piston system provides exceptional reliability and heat resistance, while the included handguard allows for immediate accessory mounting. Why Choose Brownells BRN Products? Brownells has developed the BRN-4 series to deliver reliable performance in the HK416 style. This complete upper reflects their commitment to producing high-quality, fully assembled components that meet the needs of serious shooters and professional users. Technical Specifications Brand: Brownells Model: BRN-4 Complete Upper Caliber: 5.56mm Barrel Length: 16 inches Barrel Profile: Heavy Handguard Length: 13.5 inches Operating System: Short-Stroke Piston Part Number: BRN4-CU-16H BRN-4 16" Heavy Barrel Complete Upper The Brownells BRN-4 Complete Upper (BRN4-CU-16H) is a fully assembled piston-driven upper receiver featuring a 16-inch 5.56mm heavy barrel and 13.5-inch handguard. Designed for the BRN-4 and HK416 platform, this complete upper delivers exceptional durability, reduced fouling, and sustained-fire performance. Ideal for general-purpose, tactical, and high-round-count applications, this ready-to-install upper provides a robust and reliable foundation for your BRN-4 build. The End