never seen a factory SV with an STI grip either.
I would guess that grips get changed over time. So now you can say you have seen a factory SV with an STI grip. Also the FC group is Brazos.
Personally, I'd send Brandon the serial number and have him tell you if it was a gunsmith build or an older Factory gun. brandon@sviguns.com
+1,
I think what everyone is trying to do, albeit in a very nice way, is say that it may have been a factory gun.... at one point. with the modifications you listed..... it is not really a factory piece. Trigger group, grip, maybe cmore (not a whole lot of SV factory guns with serendipity's on them). With the unknown round count, look for a really good deal.
FWIW the thumb safety, beaver tail, and racker look to be later installs, to my eyes.