Zaffiri Precision IBS Ported Barrel Glock 19 Gen 5 9mm

Glock changed the barrel profile with the Gen 5, so this is the version machined for those guns. The chunk ports along the top of the barrel line up with the openings in a Zaffiri Precision IBS slide, venting gas upward as the bullet leaves and keeping the front sight from climbing between shots. IBS stands for Integrated Blowhole System, and the two parts are engineered around each other.

Read the fitment before ordering. Port alignment is guaranteed only with the Zaffiri Precision IBS ported Gen 5 slide, not with a factory Glock slide and not with another brand's cut, so plan the upper around a matching pair. The barrel is machined from stainless steel with a black nitride finish, and the muzzle is not threaded, so the gun keeps a standard profile up front. Chambered in 9mm.