Swenson Glock 22 Conversion Barrels barrels are precision machined from stainless steel for wear and corrosion resistance. 9mm conversion barrels allow you to shoot 9x19mm out of a Glock 22 which normally shoots .40 S&W by simply swapping the barrels. These barrels are designed for improved accuracy, while still allowing for a drop-in fit. Reloading for your Glock has never been easier thanks to the standard rifling (for compatibility with all bullets, including cast), and a fully-supported chamber. Part may require fitting to your specific gun. Note: Thread protector not included.Features416 Stainless Steel 1 in 16" TwistFull lengthStainless Finish1/2" - 28 Threaded MuzzleGlock Gen 1-4 pistols (not Gen-5) 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.