Brownells BRN-180S GEN 2 13.9'' UPPER RECEIVER PINNED/WELDED .223WYLDE B1813UA01-2F

Brownells BRN-180S Gen 2 13.9" .223 Wylde Upper B1813UA01-2F Brownells BRN-180S Gen 2 13.9'' Upper Receiver Pinned/Welded .223 Wylde B1813UA01-2F The Brownells BRN-180S Gen 2 Upper Receiver (B1813UA01-2F) is a high-performance, piston-driven upper receiver assembly designed for the modern shooter. Featuring a 13.9-inch .223 Wylde barrel with a pinned and welded muzzle device, this Gen 2 model builds upon the proven AR-180 platform with improved reliability, accuracy, and user-friendly features. Modern Piston-Driven System Unlike traditional direct impingement AR-15s, the BRN-180S utilizes a short-stroke piston system. This design keeps the action cleaner by preventing carbon fouling from entering the receiver, resulting in improved reliability, reduced maintenance, and consistent performance even during high-volume shooting. .223 Wylde Chamber with 13.9" Barrel The 13.9-inch barrel is chambered in .223 Wylde, a hybrid chamber that offers excellent accuracy with both .223 Remington and 5.56 NATO ammunition. This chambering provides superior precision compared to a standard 5.56 chamber while maintaining compatibility with a wide range of modern loads. Pinned and Welded Configuration The muzzle device is permanently attached using the pin and weld method. This configuration allows the upper to maintain a short overall profile while complying with federal regulations regarding barrel length when paired with the appropriate lower receiver. Key Features of the Brownells BRN-180S Gen 2 Upper Short-stroke piston-driven system 13.9-inch .223 Wylde barrel Pinned and welded muzzle device Improved Gen 2 design and reliability Model Number: B1813UA01-2F Common Applications Modern piston-driven AR builds Suppressor-ready short-barreled configurations High-reliability defensive and training rifles Shooters seeking reduced fouling and maintenance Benefits of the BRN-180S Gen 2 Platform The BRN-180S Gen 2 offers several advantages over traditional direct impingement systems. The piston operation keeps the receiver significantly cleaner, reduces heat transfer to the bolt carrier, and provides more consistent cycling across various ammunition types and environmental conditions. Why Choose Brownells BRN Products? Brownells has refined the classic AR-180 design with the BRN-180S series. The Gen 2 model incorporates feedback from users to deliver improved ergonomics, durability, and performance while maintaining the unique advantages of the piston-driven operating system. Technical Specifications Brand: Brownells Model: BRN-180S Gen 2 Barrel Length: 13.9 inches Chamber: .223 Wylde Operating System: Short-Stroke Piston Features: Pinned & Welded Part Number: B1813UA01-2F BRN-180S Gen 2 Piston Upper Receiver The Brownells BRN-180S Gen 2 13.9'' Upper Receiver (B1813UA01-2F) combines modern engineering with the proven piston-driven AR-180 platform. Featuring a .223 Wylde chamber, 13.9-inch barrel, and pinned/welded muzzle device, this upper delivers excellent accuracy, reliability, and reduced fouling. Part number B1813UA01-2F, this Brownells BRN-180S Gen 2 upper is an outstanding choice for shooters seeking a high-performance piston-driven rifle. The End