You will need an Allen wrench to remove the existing flash suppressor. The new one should come with a wrench, but you can also find them at most hardware stores.
Once you have the old suppressor off, insert the new one and tighten it down with the wrench. Make sure that it is tight enough so that it will not come loose while firing.
You may also want to consider adding a thread protector to the end of the barrel, especially if you are not planning on using a flash suppressor. This will protect the threads from damage and keep them in good condition for future use.
Robert Answered question September 13, 2022