Keep in mind that the Hammer has a very loud firing cycle and a lot of that noise is from the mechanism. This suppressor will lower the muzzle report, but since your ear is next to the firing mechanism when you pull the trigger, you will still hear a lot of noise through the mag well due to the design of the hammer. This will still be very loud and uncomfortable.
You will need this adapter for the Hammer.
https://donnyfl.com/products/hammer-m18x1-shroud-adapter-a60?_pos=1&_sid=9f52303d7&_ss=r
I recommend the Emperor .45/.50 M18x1 #S5B.
https://donnyfl.com/collections/ldc/products/2-x-10-5-inches-emperor-v3?variant=14050945105963
I recommend the Extender #S5C for additional suppression.
https://donnyfl.com/products/emperor-v3-6-5-inch-extender?_pos=2&_sid=ce093d65f&_ss=r
TPS Hammer links