Originally Posted by emjei
In a M&P it makes a difference...Im just curious if I can file an OEM and make it round
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Please don't ruin it with a file. What you see was machined and re-chromed or coated with a nickel finish.
Chucking it up in a mandrel and turing it with emory cloth is going to cut through the finish also.
Many times parts are made from softer material and then coated with a harder outer coating to produce a cheaper longer lasting piece.
Just an opinion.