Sometime ago I posted that my front sight white dot disappeared after a shooting session. Well, I used my wife nail paint to re apply that dot... today went to the range and put 200 rounds flawless thru it, and the white dot remain intact. It is a mixed feeling because if I can do a simple litle thing like that, why can't S&W....

Good question, but the wrong entity to ask.

S&W buys the sights from a vendor.

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Ret LE Firearms inst & armorer