got to agree with this guy. i have one on my annie hmr and its the dogs bits. well built,easy to clean. and take the blast away from the shot. sill get the sonic crack like a sak. but the blast you hear when the trigger is pulled with the sak on, is took away with the dm80. look after it and it will last for many many years if not all its shooting like on that rifle.
never heard one on a 22lr but i dont think there is as much difference with any mod on a 22lr's using sub ammo.
best ive heard are the ase and a carbon mod i got from my local gunshop where the guy makes them. on my 16inch