P 10 C or F milling for the RMR footprint. Iron option include no BUIS or Glock rear dovetail milled in front or behind of the optic. Cerakote refinish of the slide is required. Disassembly, assembly, sight install is included as well. If you are doing iron forward please include your sights or order them from us so we can mill and install your sights for you free of charge. If you send your optic with your slide we will install it as well, thus sending you back a ready for final zero slide.