The FX5500-U is built for shooters who demand performance, precision, and lightweight durability in one streamlined package. Featuring a 14.5 inches pencil Barrel with an Integral Slim 3-Port Muzzle Brake, this rifle meets the NFA 16 inches minimum barrel length requirement while optimizing recoil control and stability. The 13 inches Streamline Carbon Fiber Handguard enhances maneuverability without adding unnecessary bulk, while the Lightweight Bolt Carrier Group ensures smooth, reliable cycling with every shot. Designed to be super light, easy to handle, and ultra-rugged, the FX5500-U delivers exceptional strength without unnecessary weight, making it the perfect choice for those who refuse to compromise. The 5.56 x 45mm pencil barrel with an integral 3-port brake meets the NFA's 16 inches minimum barrel length requirement The Faxon enhanced forged upper receiver provides superior strength and reliability, offering a robust foundation for building high-performance firearms The Faxon 13 inches carbon fiber M-LOK handguard combines lightweight construction with robust durability, offering easy attachment for accessories while reducing overall firearm weight The Faxon gunner lightweight Bolt Carrier Group is designed for optimal weight savings while maintaining strength and reliability during high-pressure shooting conditions Multi-position adjustable gas block, allowing for fine-tuning of gas flow to optimize performance and cycling for your firearm The enhanced ambidextrous charging handle provides improved functionality, ensuring ease of use for both left and right handed users The weight is 3.1 lb, providing a solid and sturdy product without sacrificing portability