Ruger SR9/Security 9 17-round magazine. You can see the “Made in Italy” stamp above. These mags are evidently made by Mec-Gar, a good thing. The witness holes are numbered on both sides of the mag — even numbers on one side, odd on the other. It shows 17 holes. Again, a goo...
the Security 9 is made for the 9mm cartridge whereas the LCP is a .380. The LCP, for those unaware, is double-action-only with a shrouded internal hammer. You can't cock it; every trigger pull cocks and drops the hammer.