Smith & Wesson M&P M2.0 Trigger Bar Assembly Flat Faced OEM Part (Part #422670000)

The Smith & Wesson M&P Trigger Assembly (SKU: 422670000) is the factory replacement part specifically for the M&P M2.0 series of pistols.

This assembly features the updated flat-faced trigger design, which replaced the older hinged style found on earlier models.

Compatibility Breakdown

Key Details

• Trigger Type: Flat-faced (non-hinged) with an integrated center-mounted safety blade.
• Inclusions: This SKU typically includes the trigger, trigger bar, and the trigger return spring.
• Caliber Note: It is specifically engineered for the 9mm and .40 S&W 2.0 frames; the trigger bar geometry for .45 ACP and 10mm models is different and will not function correctly with this part.

Note: Smith & Wesson recommends that all internal trigger components be installed by a qualified gunsmith to ensure the firearm's safety and reliability.

To verify your specific pistol's generation and ensure that SKU 422670000 is the right fit, you can look for these three visual identifiers on your firearm:

1. Check the Frame Marking

• M2.0 Series: The slide or the grip will explicitly have "M2.0" engraved on it. If it just says "M&P" without a version number, it is likely a Series 1.0, and this trigger will not fit.

• Texturing: The M2.0 has a very aggressive, sandpaper-like texture that wraps around the entire grip.

2. Inspect the Current Trigger

• Hinged vs. Blade: If your current trigger has a "joint" in the middle that folds when you pull it, you have the older style. The SKU 422670000 is the Flat Face upgrade with a safety blade in the center (similar to a Glock or a Shield Plus).

• Slide Stop: M2.0 pistols have an ambidextrous slide stop (levers on both sides). If yours is only on the left side, it's a 1.0.

3. Verify the Caliber

As mentioned, this specific assembly is designed for the 9mm and .40 S&W chassis.

• Check the barrel or the side of the slide. If it says .45 Auto or 10mm, do not install this SKU, as the trigger bar length is different to accommodate the larger magazine well.

• When installing, ensure the Trigger Return Spring is oriented correctly (hook facing the right way) . If it's backward, the trigger may not reset properly.