Ruger 57 Threaded Barrel Kit, 5.7x28mm 4.49" Stainless Steel - 90739

Factory-manufactured threaded stainless steel barrel kit for Ruger 57 pistols, featuring a 4.49" barrel with 1/2"-28 thread pitch. Accepts any Class 2A muzzle device and includes thread protector adapter and wrench for tool-free installation. Made in the USA with no gunsmithing required.