Just saw this post on Facebook from Apex Tactical:
Apex Tactical Specialties, Inc.
Scott and Jon are currently at the range performing the initial test fire of the Shield Trigger prototype. The M&P Shield Action Enhancement Trigger Kit is coming to you very soon!"
Trigger is coming soon. I hope they will consider making the FSS Kit for the Shield. I know they released some sample FSS Kits for T&E to some armorers.
I have the apex shield kit and will purchase a trigger when available. A lgs has my two glocks I am trying to sell to purchase another S&W M&P. The shield is simple to upgrade or enhance to the owners taste without major hassle.
I have the Shield carry kit installed and love what it does for the pistol. I am surprised by my own performance with it which is really just a testament to the design of the pistol and the performance enhancing capabilities of Apex. I cannot wait for the Shield AEK trigger.