The FN 15 Tactical II improves upon the existing FN 15 platform with the addition of FN's rail system with M-Lok technology, enhanced MIL-SPEC lower receiver, and legendary match-grade free, floating, chrome-lined, cold hammer-forged barrel offer extreme durability and performance. The second generation of the FN 15 Tactical still offers distinguishing features such as 3-prong flash hider, mid-length gas system, and H1 buffer, and Magpul MOE grip and SL buttstock.