Noisy buffer spring

As mentioned, grease helps quite a bit.

If that isn't up to your desired results, a smoother interior buffer tube and a JP polished recoil spring should help even more.
 
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I found this in my stash. It worked quite well. Not as noisy.
 

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I have a PA10 that has a very noisy buffer spring. What does every one use to quite down the spring? If it wasn’t for hear protection i think I would go deaf! Thanks
I just had a similar issue but in an AR-15 .300 blackout. I replaced the spring and buffer with an Armaspec Stealth buffer, still noisy. I then grabbed my JP captured spring from an existing AR, still noisy. I started rubbing the inside of my buffer and it was noisy. I then rubbed the insides of a few different ARs, quiet. Basically my issue was the inside of my buffer tube was noisy. It didn't feel rough at all either. I contacted the mfr and they exchanged it for me. So now my subsonic rounds with the Armaspec are very quiet! I would of never thought the insides of a buffer tube would be noisy ever.
 
In any case, a chrome silicon spring needs to be oil coated for corrosion control. Springco springs are great but they will fail if they are allowed to corrode.

The Tubbs springs are 7-17 stainless which is nice. And you can remove a coil to tune if necessary.

In context, if you lived on the coast, I would think seriously about a Tubbs. If you live somewhere with normal humidity and can do periodic maintenance, chrome silicone is great.