UTG Pro 9" free-float AR-15 handguard in the super-slim tubular profile - mid-length gas system compatible, with a continuous Picatinny top rail and a proprietary attachment system that locks to the barrel nut via an internal anti-rotation tab for rock-solid indexing. Slim enough to keep your support-hand hold natural, long enough to clear a mid-length gas block and give you a full grip forward of the magazine well. Specs & features: 9" length - mid-length gas system compatible Free-float - no contact with the barrel Continuous Picatinny top rail for optics, night vision, or backup irons Includes three detachable 2-slot Picatinny rail sections (3, 6, and 9 o'clock) Internal anti-rotation tab for repeatable lockup and zero shift Ergonomic slim tubular profile with matte-black hard-coat anodized finish Accommodates a low-profile gas block Fitment: AR-15 upper receivers with a standard AR-15 barrel nut interface. Requires a low-profile gas block (not compatible with A2 front-sight bases). Verify your gas system length matches the 9" mid-length spec before install.