Referenced Product: SRDMPX
You would need to buy a P226 threaded barrel (BBL-226-9-T) to use a suppressor. We would recommend considering Sig Sauer's SRD9 suppressor.
Referenced product: SRD9
Response Date: Mar 13, 2019
To install this on a P365 you will need a threaded barrel. Sig doesn't offer one but there are some third party barrels (True) on the market.