If your LCP is for plinking it might be useful at the range. The small compact .380's for me are only intended for SD and use at the range is intended to make me better with it. If I can carry a drum mag for the LCP, than just as easily I can carry a better gun like a G17 glock or similar. I only carry the LCP type of pistol when I need maximun concealment. I wish you success in your search for a drum magazine. In places like brazil when most are restricted to .380 and .38 spl I can see the utility of a .380 drum magazine.