Cut barrel to 20-1/2 inches measuring from the end of the chamber to the end of the muzzle
For Winchester 97 only, remove the clamp that holds the magazine tube and the barrel together (this clamp will no longer be used). For Winchesters only, if your magazine plug does not have a 9/32 stud on the end of it you will need to replace it with one that does in order to support your magazine tube. We sell them on our web site.
Remove the 3 securing screws from the attachment and slide the bayonet attachment on the barrel until the 9/32 stud on the end of the magazine plug goes into the hole in the rear of the leg on the attachment and the rear of the leg is flush with the face of the magazine plug. This is for Winchesters only. For Stevens and Ithaca slide the attachment on the barrel until the end of bayonet lug (round stud that the bayonet ring slides over) is even with the muzzle end of the barrel. Leaves approx. ½ inch of barrel showing.