An answer for those tired of the ar "sproing". - Armaspec AR15 Gen4 C/H/H2 Stealth Recoil Spring Kit

It took me a long time to get into AR rifles because I couldn't stand the "SPROING" sound of the buffer, tube, and spring when the action cycles. Finding this has opened up a whole new world of firearms to me.

Very quiet operation. Almost no sound gets transmitted through the buttstock to your cheek/skull. Its well-designed, perfectly machined, and reliable.

I highly recommend getting the full kit and trying out the various weights to see what works best in your rifle. I figured out that the lightest weight (C, 3.3 oz) worked great in my 16" lightweight rifle(s) without sacrificing any reliability. I had not expected that at all.