Featuring a 16″ barrel made from high-quality 4150 CMV material with a Salt Bath Nitride finish the BRAVO ZULU is chambered in 5.56 NATO (.223 REM) and has a twist rate of 1:8 ensuring exceptional accuracy and reliability. The mid-length gas system combined with the Snake Charmer Muzzle Brake makes for a smooth and comfortable shooting experience. The BRAVO ZULU upper assembly also boasts a 7075 Forged A4 Flat Top Upper Receiver complete with a Mil-Spec Charging Handle and a BCG made from top-quality materials including a Bolt Carrier made from 8620 Steel SBN and a Bolt made from 9310 MPI SBN. The 14 BFI M-LOK Handguard provides plenty of space for accessories while the MLOK Free Float Rail with QD integrated sling swivel mounts allows for easy attachment of slings. Proudly made in the U.S.A. the BRAVO ZULU 16″ Upper Assembly is the ultimate upgrade for your XM15-E2S rifle delivering exceptional quality accuracy and performance. With a weight of only 4.1 LBS this upper assembly is lightweight and easy to handle making it perfect for a wide range of applications. Whether you’re a professional shooter or a serious enthusiast the BRAVO ZULU is sure to impress.