Reposting from FB.
In 2008, Ruger received a small number of reports from the field indicating that LCP® pistols could discharge when dropped onto a hard surface with a round in the chamber. We are firmly committed to safety and would like to retrofit all older LCP® Pistols. The retrofit involves installation of an upgraded hammer mechanism at no charge to the customer.
How to determine if your pistol needs the retrofit:
All LCP® pistols with serial number prefix "371" and higher (371-xxxxx) have been manufactured with the new hammer mechanism and are NOT affected by the recall and DO NOT need to be returned. If your LCP® has a serial number prefix "370," (see Figure 1) you will need to check the flat portion of the slot just behind and below the hammer for the diamond mark shown in Figure 2. LCPs marked with the diamond have had the new hammer mechanism installed and DO NOT need to be returned. If your LCP® has the "370" serial number prefix and DOES NOT HAVE the diamond mark, you should have your LCP® retrofitted with the upgraded hammer mechanism at no charge.
We want to remind gun users that, for maximum safety when carrying any pistol with a loaded magazine in place, the chamber should be empty, and the slide should be closed. Any gun may fire if dropped or struck.
Step 1 - Contact us via email at LCPrecall@ruger.com or phone at 1-800-784-3701 and provide your name, address, the serial number of your pistol, your telephone number and the best time to call.
Step 2 - We will verify that your pistol is subject to the recall and will send you a packing container, detailed instructions and shipping label so you can send your pistol to us FREE of charge.
Step 3 - We will install the new hammer mechanism, plus some other functional upgrades that we added since the LCP’s introduction, and return your LCP® to you, all FREE of charge.
Sturm, Ruger & Co., Inc.