The difference is worth it. - Armaspec AR15 Gen4 H2 Stealth Recoil Spring

There’s a difference in sound, but it’s unrealistic to expect that difference to be heard when you’re firing the rifle. The AR definitely doesn’t sound like a toy anymore when I pull the charging handle/BCG back. I do notice a big difference in stability as well, translating to a better functioning rifle. I probably wouldn’t pay the 130-150 for some of the other brands, but for $75-80 bucks I think it’s worth the difference.