Sig Sauer P250 2SUM 9mm Advice? Local dealer has a Sig Sauer P250 9mm 2SUM for sale $429.99 This is the 'modular' 9mm that comes with BOTH a full size frame and a compact frame. You convert the weapon by moving the 'trigger group' from one to the other. Weapon comes with one magazine for each. Is this a good price? How good a weapon is this model Sig?