940 Pro Tactical comes optic-ready, with receiver cuts that accept low-profile direct mounting of Shield RMSc-pattern micro dot sights— for improved eye alignment and target acquisition. Optic-Ready Mounted Holosun HS407K Clean-running Gas-vent System Quick-empty Magazine Release Adjustable Length of Pull Drilled and Tapped Receiver Adjustable for Drop at Comb/Cast Fiber Optic Sight Barrel Clamp with M-LOK mounting slots