Modifying a Mauser trigger isn't as straightforward as it appears. I've been building custom Mauser based sporters for over 40 years. Installing an aftermarket trigger sometimes involves changing or modifying the cocking piece to allow a single stage trigger to reset properly after the safety is engaged and released. Be sure the end result you get doesn't create the deadly dangerous possibility of a negligent discharge.
Jerry


Ignorance can be fixed. Stupid is forever!