Description: The Bravo Zulu™ is designed and manufactured to exceed all expectations. Bravo Zulu meaning a job well done is introduced into the XM15-E2S™ family with a free float rail, Thril products and the Snake Charmer Muzzle™ Brake Specifications: – 5.56 NATO – 16″ Barrel with a 1:8 Twist Rate – 33.5-36.5″ Length – 6.21 LBS w/o Magazine – BFI™ 14″ Free Float Rail – Salt Bath Nitride Bolt Carrier Group – MPI Tested Bolt – Snake Charmer™ Muzzle Brake -DM2S™ 2 Stage Trigger   Features:  – Equipped with a Thril Polymer 30 Round Mag -MID Length Gas System – Thril Combat Competition 6 position stock  – Thril Pistol Grip  – Optics Ready    Proudly Made In U.S.A.