M2 Armament Group Glock 19 Gen 1-5 9mm Ported Non-Threaded Pistol Barrel Black. Upgrade your custom pistol build or home gunsmithing project with the M2 Armament Group Glock 19 Ported 9mm Barrel. Engineered with integrated top gas ports this drop-in performance barrel directs expanding combustion gases upward to dramatically reduce felt recoil and muzzle rise. Whether you are assembling a 3D printed frame (3DP / FMDA) completing a Polymer80 PF940C 80percent build or customizing an OEM Glock 19 this ported barrel provides faster follow-up shots and rapid sight realignments for competition and defensive setups. Specifications for M2 Armament Group Glock 19 Gen 1-5 9mm Ported Non-Threaded Pistol Barrel: Manufacturer: M2 Armament Group Color: Black Finish: Nitride Fabric/Material: Steel Caliber: 9mm Luger Gun Make: Glock Gun Model: Glock 19 Model Generation: 5 4 3 2 1 Barrel Length: 4.02 in Barrel Material: 416R Stainless Steel Threads per Inch: 1/2x28 Barrel Twist Rate: 1-10 RH Package Contents: M2 Armament Group Glock 19 Gen 1-5 9mm Ported Non-Threaded Pistol Barrel What firearm models does the manufacturer say M2 Armament Group Glock 19 Gen 1-5 9mm Ported Non-Threaded Pistol Barrel is compatible with? The manufacturer says that M2 Armament Group Glock 19 Gen 1-5 9mm Ported Non-Threaded Pistol Barrel is compatible with Glock 19M2 Armament Group M2-G19-BARREL-T: Glock 19 Gen 1-5 9mm Ported Non-Threaded Pistol Barrel Black