Does your Sig drop freely into the holster? I've used a Safariland ALS holster with 3 different models- 1911, S&W M&P, and my P229. The two non-Sigs will fall into and lock into the holster under their own weight. Drawing them is easy as well. My Sig does not do this- it is a very tight fit and has trouble engaging the ALS lock.
I have a P229 SAS gen 2, which does not have a rail. I've tried both ALS holsters- the one for a railed P229 and the one for a non-railed P229. Both were a very tight fit.
I'm wondering if I've just had back luck and gotten lemons for holsters, or if Safariland's mold for Sigs is the wrong size, or if there is something different about my handgun that makes it different than other sigs.
On the last point, my Sig is a newer model- tall slide serrations, long extractor- but is not railed. I don't know if this affects fitment in the holster.
Any insight is appreciated.