Most of you probably already know that SIG has offered a new design for the P250 subcompact. The new ones are now available with the medium grip and a tac-rail. before they had that plain angled front dustcover and only the small grip was available. My question is, does anyone know if the new ones have stainless slides under the nitron coating or are they basic carbon steel? I know SIG often uses stainless under their nitron finish.