Maple Leap Firearms Glock 17 Slide Gen 4 Maple Leap Firearms 5X/MK 1c Ported Slide+Barrel Glock 17 Gen 4 Optic Cut for rmr. Only opened the box, never mounted or shot (besides the test shooting that they did after building the slide) Slide comes with literally everything, amazing fit and finish, very high end slide, meant for a glock 17 gen 4 does not have the upper internals, barrel is ported and so is the slide. Waited 2 months for the slide and ended up selling the gun i was gonna use this for, so now i have no use for the slide. For fastest response please text me at 904-463-5229 Thanks! :)