Magpul MBUS Gen 3 AR-15 Rear Back-Up Sight - MAG1167 - Black (Color: Black)

Low Profile, Tool Free, Polymer Backup Sight Combining the best features of Magpul's polymer and steel backup sights, the new MBUS rear sight truly is a next-generation sight. With rapid push-button deployment, tool-free windage adjustment, and a sleek profile on par with the MBUS pro, this rear sight also comes in at a price point [...]