They told me the same. But, I though the sight cuts were the same on the 320 as the P series Sig's. ? I have one of Dawsons Charger rear sights for my 226 that I haven't put on yet, but if the cuts are the same why wouldn't it fit on the 320?
I just installed an Ameriglo Sig P series rear sight on my P320. Sight installed with no problems. No overhang on the rear.
Mike
Oh yeah, i forgot about Ameriglo. What part # did you get. Also was the fitment tight, did you need to file it ?
SG-402 plain black rear. Installed without fitting.
Mike