while it's true that SIG uses some MIM and stamped parts, mostly small parts like springs, screw, and pins for the P320, the M17 variations, including the commercial model, are US made and has no imported parts. the SIG 1911 has significantly more MIM and small parts from india such as the safety, hammer, and MSH.
since 2017 or so, the parts are made in Texas (san antonio specifically) by a factory that is owned by Indo-MIM (
https://www.indo-mim.com/) which also operates in Germany for some Walther models and Umarex as well.
so if it was to cut cost, it certainly isn't cutting much cost now. probably some parts are still molded in india, but without some deeper inspection or a BOM it's hard to say. in my experience, it's mostly small parts like the trigger, not the slide or frame. for these, the ones i've handled were indistinguishable from known US made ones other than the color being more gray than deep black. maybe there some questionable heat treatment going on or the metal formula is off leading to premature wear or deforming?