Your option is HS bottom metal for BDL stocks, ~$300. Single stack only, 4 or 5 rounds. Great mags, low profile, but AICS is the defacto standard and HS doesn't appear to support it. Or you put another stock on, or you send to a smith to inlet for Badger M5 or other bottom metal. As others have said, double stack mags, such as SR25 pattern, won't work with Rem 700 actions, not enough meat on the bottom.