![Sig Sauer MPX](https://i1.wp.com/www.stevejenkins.com/blog/wp-content/uploads/2015/06/MPX-Detail-Hero.jpg?resize=570%2C348&ssl=1)
UPDATE: When this article was first published in June 2015, SIG Sauer’s official position was that installing an aftermarket trigger in a SIG MPX would void the warranty. They have since changed that position. Aftermarket triggers no longer void the warranty, though SIG won’t be responsible for any damage to aftermarket […]