If you plan on running a Trijicon RMR on it, I suggest using the Forward Controls Design OPF-G. It will eliminate the dead space in the rear and in front of the optic and it will help support the optic and keep it much more secure than the factory Glock plates.Picked up my 1st glock today and already dressed her up. Glock 19 MOS gen 5 installed an apex trigger and Truglo tritium pro night sights.