Several models of rifles from manufacturer SIG Sauer are now being recalled, the company announced in a release Friday. The issue stemmed from a problem in the heat treatment of the hammer of SIG’s two-staged trigger used in the SIG716 DMR, SIG516 Carbon Fiber, and SIGM400 Predator models. SIG’s release claimed that over time, this flawed heat treatment could cause a malfunction “creating a significant safety hazard”. Therefore, SIG is issuing a mandatory recall on these models, so that their trigger assemblies can be replaced, free of charge. According to the release, no law enforcement guns are affected by the recall.

If you own one of the rifles affected, SIG advises you to follow the steps listed in their press release:

[S]top using the firearm immediately and follow the instructions on the website or call SIG SAUER Customer Service by dialing 603-610-3000, option #1. Have the rifle’s serial number available.

This is the second major product issue from SIG this season, preceded by the infamous P320 drop safety issue from August. In this case at least, it seems SIG has learned from their previous mistakes and are addressing the potential safety issues with the SIG716, SIG516, and SIGM400 before the market catches on, rather than trying to hide it. SIG Sauer did not issue an official product recall for the P320, but eventually they did offer what they called a “voluntary upgrade” of the pistols with a new trigger pack.