Sniper .22
You will an adapter to add a suppressor to this airgun.
Most Evanix shrouds uses the same thread size for the adapter. This one should fit: https://donnyfl.com/products/evanix-rainstorm-1-2-x-20-unf-adapter-a29?_pos=2&_sid=b77d300ac&_ss=r

I recommend the Sumo .22/.25 1/2x20 $S61. This will fit our adapter in the link above.
You will an adapter to add a suppressor to this airgun.
Most Evanix shrouds uses the same thread size for the adapter. This one should fit: https://donnyfl.com/products/evanix-rainstorm-1-2-x-20-unf-adapter-a29?_pos=2&_sid=b77d300ac&_ss=r

Sniper .25
You will an adapter to add a suppressor to this airgun.
Most Evanix shrouds uses the same thread size for the adapter. This one should fit: https://donnyfl.com/products/evanix-rainstorm-1-2-x-20-unf-adapter-a29?_pos=2&_sid=b77d300ac&_ss=r


I recommend the Ronin .25/30 1/2x20 UNF thread, #S18 for your .25 cal rifle. This will quiet down the barrel report of the airgun but you will still hear some mechanical noise from the action.