Ensure proper fit before buying - IDENTILOCK S&W-B1 Biometric Trigger Lock for Smith & Wesson M&P40 Shield & M&P9 Shield

The concept is great, it seemed to work well. I was unable to use it and had to return the item. It was refunded promptly and even with the COVID-19 delays my questions answered and all was processed quickly. I have a S&W M&P 9MM EZ SHIELD 2.0. It's a compact weapon and the lock fits the same pistol just not the 2.0. Nothing available for my particular pistol so I had to return it.