Magpul Mbus PRO Rear Flip Sight Black MAG276 Flat Rate Shipping Guaranteed. Please be advised: GunBroker automatically charges Sales Tax where applicable thanks to the 2018 Supreme Court decision handed down in South Dakota vs Wayfair. Product Description. Magpul Industries Mbus Pro Rear Sight, Fits Picatinny, Flip Up, Steel, Black Mag276 Model .... We Found a Deals on Magpul MAG526 MBUS Pro Offset Flip-Up Rear Sights at BOTACH then compare prices, ratings, and reviews over 90+ Online Merchants like SteepandCheep.com. Chase the Best Deals on the internet with GearChase.com. "/>Magpul mbus pro