Yes, they will.

yes they will work however they will extend below the grip you can get a grip extender here but they are not necessary https://bloodywheelsusa.com/store/ols/products/taurus-g2c-pt111g2-magazine-sleeves

Hi Howard and welcome. Yes, but there will be a gap between the grip and the magazine. Grip sleeves to cover the gap available here: https://lakelinellc.com/15-round-magazine-interlocking-sleeve-and-base-plate-for-use-with-the-taurus-g2c-and-taurus-g3-15-round-magazine/

Yes.