When I got my PO 9 , Ichanged out the pins for CGW parts.
4000rnds later no prob.
JMHO, spending a few extra dollars getting my pistol parts from a reputable, well-known pistol parts manufacturer and dealer is great peace of mind and insurance.
Buying parts from a supply house that you have no idea what they're selling and may not even belong in a pistol, it's not something I would ever think of doing.
It's the pistol you're putting these Chinese Parts in this for the range more power to you, if it's a self-defense pistol good luck with that.?