Great news for Sig Sauer M18 & M17 owners! All of our current SIG P320C and P320 Full Size holsters are fully compatible with your pistols.
If you're shopping for an M18 holster, simply choose the P320C option in our builders. For M17 owners, select the P320 Full Size option. And if you're lucky enough to own both the M18 and M17, the P320 Full Size holster will be your perfect all-in-one solution!