If you want to see what the Apex Tactical Polymer Trigger FSS (Forward Set Sear) looks like in the gun, here you go: [clicken to embiggen]
And here’s a close-up showing the face of the trigger. It has a more rounded contact surface than Apex’s aluminum FSS trigger.
A review of the trigger kit will be forthcoming after I’ve had a chance to take it to the range. For now I can say that I am very impressed. The FSS kit has a short take up and a clean, crisp, short release that eliminates the ‘spongy’ break common to striker fired pistols. Initial measurements show a consistent 4lb 10oz trigger pull but it feels lighter than that.