Nice to see more metal
No, I am not talking about Metallica, I am speaking of the trend in modern handguns to “throwback” from polymer frames to something with a bit more rigidity. Walther did this a minute ago by taking their Q5 and later their Q4 plastic guns and marketing them in a beefier steel frame format.
Now, Sig Sauer has taken their P320 model, which has a serialized internal fire control pack that can be swapped out among many different polymer grip modules and introduced it in an upgraded model with an alloy frame akin to the old P220-225-226-228-229 line.
Notably, Sig had previously used an alloy frame on their presentation M17s issued to the watch sergeants of the Old Guard’s Tomb Sentinels.