The FN 509 Midsize MRD FDE makes for a perfect carry option. It has suppressor high sights and is cut for an optic. FN’s current mounting system for optics is one of the best offering more than 10 options for direct mounting of optics. It is also one of the strongest systems, not requiring lock tight. The front and rear sight are suppressor high, allowing co witnessing with a mounted optic. The polymer frame is easily adjusted through backstraps to fit the end user. The barrel has a target crown, offering better accuracy. Overall this pistol has been engineered to be one of the best carry options on the market.