How long will a quality .22 pistol suppressor last? Does anyone have any experience with them? I recently got to fire a Walther p22 with a gemtech can and it was great, no hearing protection required. The only slighly annoying part was the can made using the sights a bit more difficult as the can itself blocked anything below the sights so if you were aiming high you couldn't see what you were shooting very well. But it also had a laser sight on the gun, some might say mall ninja but it was a fun little plinker.