When you place your order in checkout, leave a description of what caliber you would like, barrel length, any finish you may want, muzzle threading, so on an so forth. These barrels do not come with a barrel nut, you will have to order one in addition to your barrel.
we are happy to offer a wide assormtnet of options for these.
then you will notice the #4 wilsons, these are the most popular twists for their calibers in the industry today. we take a typical #4 barrel and turn the shank down for use as a remage, so it takes some aditional machine work