Before I started addressing the actual over gassing of many of my guns, I was doing the buffer thing. My approach was to NEVER deviate from a Colt factory spring after trying a CS spring that caused complete misery for one of my carbines.
I'm not a physicist, but I think a heavier spring is going to snap back more rapidly which does nothing to fix the excessive bolt speed that's the root of the problem. A heavier buffer with the standard spring is going to both slow the rearward travel as well as the forward travel.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
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