I know not hollywood quiet. I hated the walther p22 with a gemtech..suppresor was cool, but gun is a POS. but the short barrel makes for a quiet shooting. my gemtech on a 10/22 is loud to me even with subsonic, though better. My point is, are 9mm suppresors worth it. Will it be fun to shoot, quiet enough to shoot in my yard? I know not, but I have not shot one in person. platform is g22 with threaded conversion barrel. Yhm cobra seems to be a good option that works and it not hella expensive. what do you all think or have experianced?