AimSurplus GLOCK 17 compatible 9mm caliber stainless steel PORTED BARREL with a DLC or your choice of other coating. These barrels only work in a slide that has a top window and doesn't cover any of the holes. If you use this barrel in a slide and all or some of the holes are covered, it could cause damaged to your slide. Please check fitment before shooting. This is a drop in barrel (No gunsmithing required). Chamber is made to a SAMMI Spec. The ports start 11/16" from the muzzle on ported barrel.
