Apex Tactical Polymer Action Enhancement Drop-in Trigger for S&W M&P - 5-5.50 lbs Draw Weight

The Apex Tactical Polymer Action Enhancement Drop-in Trigger for S&W M&P is a straightforward upgrade for shooters who want a lighter, cleaner trigger pull without a trip to the gunsmith. This kit transforms the M&P 9mm and .40 S&W's stock trigger from heavy and gritty into something that breaks at 5 to 5.5 pounds with noticeably shorter reset and reduced pre-travel. If you carry or compete with an M&P and find yourself working the trigger harder than you'd like, this is the kind of practical improvement that makes shooting more enjoyable and more precise.

What makes the Apex approach work is attention to the small details that compound into better trigger performance. The polymer construction keeps weight down, the rounded trigger face gives your finger a natural contact point, and the fully machined sear paired with a heavy-duty spring set delivers the consistency you're looking for in a defensive or range gun. The kit cuts pre-travel and over-travel by roughly 20 percent compared to factory, so there's less dead space before the gun fires and less slack after reset.

Installation is designed to be drop-in for most builds, though Apex recommends having an armorer or gunsmith handle it to ensure everything sits right. The center-mounted pivoting safety mechanism keeps the gun's original safety function intact—a non-negotiable for carry use. Just be aware: this kit is engineered for the classic M&P 9mm and .40 S&W only. It won't fit the M&P45, M2.0, Shield, or .22 LR variants.

Key Features

• 5 to 5.5 lb. trigger pull weight—lighter and more controllable than factory
• Reduced pre-travel and over-travel (approximately 20% reduction) for a more direct break
• Shorter reset for faster follow-up shots
• Rounded trigger face for comfortable finger placement
• Center-mounted pivoting safety maintains factory safety standards
• Drop-in design minimizes need for additional gunsmithing
• Fully machined sear and heavy-duty spring set for reliability
• Suitable for duty, carry, and range applications

Specifications

Frequently Asked Questions

Will this trigger fit my S&W M&P?

The Apex Polymer Action Enhancement Trigger is designed for S&W M&P pistols chambered in 9mm and .40 S&W. It does not work with the M&P45, M2.0, Shield, or .22 LR models.

Do I need a gunsmith to install it?

The trigger is engineered as a drop-in kit, so it may install without additional work. However, Apex recommends having an armorer or gunsmith perform the installation to ensure proper fit and function.

Is this trigger safe to carry?

Yes. The trigger maintains a safe pull weight for duty and carry applications, and the center-mounted pivoting safety mechanism preserves the factory safety function.

What comes in the kit?

The kit includes the trigger, a heavy-duty sear spring, a fully machined sear, a duty/carry spring set, the Ultimate Striker Block Kit, and a slave pin for installation.