Apex Tactical 107003 Polymer Action Enhancement Trigger - Drop-in Trigger with Black Finish for S&W SD9/40/357, SDVE9/40/357, Sigma

If you carry or shoot an S&W SD9, SD40, SD357, SDVE9, SDVE40, SDVE357, or Sigma pistol, the Apex Tactical 107003 Polymer Action Enhancement Trigger is a straightforward upgrade that improves what comes from the factory. This drop-in trigger replaces your hinged factory trigger with a solid-body polymer design that tightens up the trigger press without requiring gunsmith work or custom parts fitting.

The key improvement shooters notice is the reduction in dead space and mushy takeup. The Apex trigger cuts pre-travel by roughly 20% and over-travel by 10% compared to stock, giving you a crisper, more predictable break. The center-mounted pivoting safety mechanism keeps the same familiar manual deactivation you're used to, while the rounded trigger face offers a smooth, comfortable surface under your finger—important when you're running drills or working on accuracy at the range.

The black polymer construction is durable and lightweight, and because it's a true drop-in design for these S&W platforms, installation is straightforward. This is the kind of no-nonsense upgrade that works for shooters who want a better trigger press without complications or lengthy fitting procedures. Whether you're fine-tuning a duty gun, improving a range rig, or just tired of that mushy factory pull, the Apex Action Enhancement Trigger delivers real gains in control and feedback.

Key Features

• Solid-body polymer construction replaces factory hinged trigger
• Approximately 20% reduction in pre-travel
• Approximately 10% reduction in over-travel
• Center-mounted pivoting safety design
• Rounded trigger face for comfortable finger placement
• Drop-in installation—no modifications required
• Black finish
• Compatible with S&W SD9, SD40, SD357, SDVE9, SDVE40, SDVE357, and Sigma models

Specifications

Frequently Asked Questions

Is this trigger compatible with my S&W Sigma or SD9/40?

Yes. The Apex 107003 is designed as a drop-in replacement for S&W SD9, SD40, SD357, SDVE9, SDVE40, SDVE357, and Sigma models. If you have a different Sigma variant, check the model number—Apex specifies part 000-002-152 for certain Sigma applications.

Will I need a gunsmith to install this trigger?

No. The Apex Polymer Action Enhancement Trigger is a true drop-in design. Installation does not require modifications to your pistol and can be done without professional help if you're comfortable with basic trigger assembly work.

How much does this reduce trigger travel?

The trigger reduces pre-travel by approximately 20% and over-travel by 10% compared to the factory S&W trigger, resulting in a shorter, crisper press overall.

Can I order reduced power spring kits for this trigger?

Yes. Apex offers reduced power trigger spring kits that can be special ordered separately for use with this trigger.