Zaffiri Precision IBS Glock 17 Gen 3 Glock 17 Gen 4 9mm Luger Non-Threaded Pistol Barrel 4.37in 1-10 RH Twist Nitride Black. Machined from 416R stainless steel these barrels are built for consistent fitment and dependable operation with standard components. The chunk port design vents gases through the slide cutouts helping to reduce muzzle rise and felt recoil while maintaining a clean purpose-built configuration. A great choice for shooters building out a complete IBS system using compatible Zaffiri Precision components. Specifications for Zaffiri Precision IBS Glock 17 Gen 3 Glock 17 Gen 4 9mm Luger Non-Threaded Pistol Barrel: Manufacturer: Zaffiri Precision Fabric/Material: 416R Stainless Steel Caliber: 9mm Luger Gun Make: Glock Gun Model: Glock 17 Gen 4 Glock 17 Gen 3 Barrel Length: 4.37 in Threads per Inch: None Barrel Twist Rate: 1-10 RH Gun Type: Pistol Features of Zaffiri Precision IBS Glock 17 Gen 3 Glock 17 Gen 4 9mm Luger Non-Threaded Pistol Barrel Chunk port design vents gases through matching slide cutouts Designed specifically for use with Zaffiri Precision IBS slides Porting alignment is only guaranteed with compatible IBS slide models Ported design helps reduce muzzle rise and felt recoil Designed for consistent fitment with OEM and IBS-specific components Conventional rifling compatible with a wide range of ammunition types Designed for drop-in installation Package Contents: Zaffiri Precision IBS Glock 17 Gen 3 Glock 17 Gen 4 9mm Luger Non-Threaded Pistol Barrel What firearm models does the manufacturer say Zaffiri Precision IBS Glock 17 Gen 3 Glock 17 Gen 4 9mm Luger Non-Threaded Pistol Barrel is compatible with? The manufacturer suggests that Zaffiri Precision IBS Glock 17 Gen 3 Glock 17 Gen 4 9mm Luger Non-Threaded Pistol Barrel is compatible with Glock 17 Gen 3 Glock 17 Gen 4Zaffiri Precision BA-G17G14-CP-BN: IBS Glock 17 Gen 3 Glock 17 Gen 4 9mm Luger Non-Threaded Pistol Barrel 4.37in 1-10 RH Twist Nitride Black