Will this be offered with an option for 10rd magazines?
Referenced product: 320F-9-M17
Sig is not currently (as of 7-23-2018) offering a variant with 10rd magazines. We try our best to keep 10rd magazines in stock for the various P320 sizes and can swap the firearm's mags to 10rd magaiznes if we have the proper 10rd magazines in stock. We normally charge $10 per magazine for the swap because we sell the open box magazines (from swaps) at a discount.
We recommend giving us a call if you'd like to verify availability of the magazines or if you'd like to place an order. Our site is set up to restrict sales into states that have magazine capacity restrictions.