Worth it for a discounted price - Armaspec AR9 Gen4 Stealth Recoil Spring

Install with an FM9 BCG. You’ll need to remove the weight in the BCG. Pretty simple. Overall install is easy. I haven’t fired it yet, so I’m not sure about reduced recoil. However, just charging the weapon, it doesn’t seem any quieter than your standard buff spring. I have a JP that is dang near silent. For the price, I’m happy with my purchase because of the easy install if for anything. Hopefully it gets quieter once I put some freedom seeds down range.