The fully licensed Daniel Defense RIS II 4.0″ free-floating rail system is designed to for all CQB situations. The Daniel Defense RIS II 4.0 is an innovative upgrade to the M4 CQB arena allowing the shortest profile to date from Madbull Airsoft.
The 4.0 RIS II Rail comes with a 4″ outer barrel and Black Python tight bore. The 4.0 Kit is sold as a complete set.
• Free Floating Barrel Design
• Uninterrupted Upper Rail Platform
• Aluminum T6 6061
• Mil-Spec 1913 Picatinny Rails
•Matte Black Oxide Finish Available
•Flat Dark Earth Finish Available