The Alpha Wolf line of barrels for Glock handguns offer a variety of enhancements over the factory Glock barrel. This Gen1-4 barrel is machined out of 416 stainless steel, button rifled, and honed to ensure accuracy isn't an issue. The barrel is then heat treated and finished with a salt bath Nitride process that increases the hardness to RC 60 resulting in an extremely durable and wear resistant bore. This Alpha Wolf barrel is precision machined for a drop-in installation in your Glock 17 and features fluting and a threaded muzzle for compensators. The Alpha Wolf barrel is designed for those looking to get a little bit more out of the Glock platform.Features:Fits G17 Gen1-4 (Not Gen1 pencil barrel models)Does not fit Gen5Chambered in 9mmMachined from 416 stainless steelBlack Nitride finishFluted and threaded 1/2x28Includes thread protectorDrop-in installationMade in the U.S.ALone Wolf Distributors is a high-end manufacturer that specializes in custom Glock components from barrels and slides, to springs and pins. If you are looking to upgrade your Glock or build a new one from scratch, Lone Wolf Distributors has the part you need. DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.