i just bought a taurus 24/7 pro ds. it states this on the side of the the hand gun. however, i can not find the ds anywere on the net not have i seen it in stores before. my question is what the difference between the pro and pro ds is if any? it looks the same as the pro. it carrys the same 17 mag that the pro carries and its a 9mm just liks the pro comes in. also whats the largest mag i can buy for this gun? and are there any silencers avalible and where if so?