The concept of a tiny, polymer-frame .380 had been executed years ago, and there were similar guns on the market, so it was not a new idea. Nonetheless, the LCP became a huge success for two reasons. First, it had the backing of the big Ruger marketing machine. Second, and perhaps the bigger reason, the LCP worked. It is well engineered, well built, functions without problems, and continues to do that over time. In short, the LCP was a success because it was a quality handgun that hit the market at precisely the right time.