P250, P320, P320 X-5, M17, & M18 Pistols
I just got a 9 mm P320 X-Compact, the first firearm I have ever owned, and bought a Sig 1.6 ounce grip weight which is labeled to be for the "X-Series." I watched the Sig installation video for the grip weight, and then pulled the trigger assembly. It doesn't look like the grip weight fits; I...