Zaffiri Precision IBS Ported Barrel Glock 19 Gen 3 9mm

Porting only helps if the holes line up. Zaffiri Precision cuts the chunk ports in this barrel to match the windows in their IBS slide, so gas leaves through the top of the gun the moment the bullet exits and pushes down on the muzzle instead of letting it climb. IBS is short for Integrated Blowhole System, and the barrel and slide are built as a pair.

Fitment is narrow on purpose. This barrel goes in a Zaffiri Precision IBS ported Glock 19 slide and nowhere else, because a factory slide or another maker's cut will not index with the ports. It covers the Glock 19 Gen 1 through 4 window, which includes Gen 3 guns. The barrel is stainless steel with a black nitride finish and no muzzle threading. Chambered in 9mm.