Want to upgrade your xd-m pistol to be suppressor ready? then be sure to check out these threaded barrels designed for the xd-m 4.5.These drop-in threaded barrels feature a black melonite coating for rust-resistance and lubricity.The barrels come with included muzzle caps to protect the threads when not in use.For use in any 4.5" xd-m or xd-m elite pistol configuration.Warning: caliber of barrel is intended only for use in the original caliber of the firearm.You cannot change the caliber of your firearm by purchasing one of these barrels.Length: 4.50"Model: XD-MTwist: 1:10"Finish: Melonite