i think there used to be pre-cut aluminum pillars for the T3 on here. don't see them now. ??? also,awaiting the aluminum bottom metal that takes factory mags. also,re bolt knobs: beretta used to sell a small screw into the handle plastic round knob. had one on a prev gun. hugely overpriced,but perfect for me. like another poster,the current crop seen in pics here are just too big to suit me. any leads there?