You are more detail oriented than I, as I didn't even catch that. So this is a "modified," not stock P228.
The only thing I can think of is at some point in time, the original grip was swapped with a Hogue and then put back on.
Or, according to this SITE:
That is just a WAG on my part tho.[/QUOTE]
Actually I like the allen look better myself. I thought maybe Sig switched at some point or something?
Mine is still unfired NIB w/2-13 round mags and I can't seem to bring myself to shoot it..It's that nice!
Gen3 - G30sf, Gen3 - G19
Kimber Custom .45 acp, Kimber TLE/RL II .45 acp
S&W Combat Masterpiece, Sig Sauer P228, S&W Model 60-7, S&W Model 19-3.