Noise, yes. Quite a bit. Not for stealth, but I like the noise and kick. TM does have their magic hop, and I get pretty good accuracy with it. For whatever reason, this weekend my sight was off target; I guess that's because I zeroed it using .25s, but due to running very low on ammo (in fact, I think I have only about 300 rounds spread around my room now...), I was using .2s, so that was probably why. It was still accurate, just not zeroed.