Any second now, some senior member is going to jump in and say "Why do you want to change it if it works now" or "Use the orange search button". Just warning you....
Anyway, I have an M&P 15, 2,000 rounds without a hiccup. Run a extra power buffer spring and ST-T2 (H2) buffer since nearly day one - works perfectly.
https://www.m4carbine.net/showthread.php?t=80447&page=4
Start at #63
"The human race divides politically into those who want people to be controlled and those who have no such desire." - Robert A. Heinlein
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