Features a manual rotating click-adjustable post with a swift transition between short and long-range apertures. - Can be used as primary or back-up sights - Perfectly co-witnesses with the MRDS (MICRO-RONI Red Dot Sight) - Weight: 0.10 lbs - Width Max: 1.38 - Height Max: 0.94 - Length Max: 1.77 - Color: Black