This trigger is not compatible with m&p shield - Apex Tactical Specialties Flat-Faced Forward Set Sear and Trigger Kit

I only looked at the product page when I purchased this originally and not the q and a section. unfortunately I didn't realize that it was incompatible until I had already put the trigger on to the trigger bar. At this point I cannot return it due to the fact but it seems to be irreversible and the trigger has scuffs on it so would not be considered new. (It is also still connected to the trigger bar at the moment) I wouldn't have a problem with this if the incompatibility was listed on the actual product page. On the actual product page it only says it's not compatible with 2.0 and has no reference to the shield. Unfortunately it doesn't seem I have any recourse at this point and I do hope that this helped somebody from making the same mistake I did