No, this Apex Tactical Specialties Action Enhancement Trigger is not compatible with the Shield 2.0, the Shield 45, or the Shield EZ.
The Apex Tactical Specialties Action Enhancement Trigger and Duty/Carry Kit will not work with the M&P Shield 45.
Yes, the Apex Tactical Specialties Action Enhancement Trigger and Duty/Carry Kit will be compatible with a California legal S&W M&P Shield.
The Apex Tactical Specialties Action Enhancement Trigger should work with a CA Complaint M&P Shield.
The Apex Tactical Specialties Action Enhancement Trigger and Duty/Carry Kit will not fit an M&P Shield Plus as Shield Plus triggers were redesigned and are not compatible with Shield triggers.
Apex says this product
Works with all Smith & Wesson M&P Shield Pistols in 9mm and .40 calibers.
NOT for use in the Shield 2.0.
NOT for use in the Shield 45.
Mark H.
Please email us at techsales@opticsplanet.com for further assistance.