Action Enhancement Trigger for SD, SDVE & Sigma
About this product
Action Enhancement Trigger for SD, SDVE & Sigma by Apex Tactical. Fits Sig Sauer.
Nationwide shipping. Order from anywhere in the US.
The Action Enhancement Trigger is a direct replacement upgrade for Smith & Wesson SD, SDVE, and Sigma series pistols. It addresses the most common complaint about these models: the heavy, hinged factory trigger. This component is designed to drop into your existing frame with minimal effort, offering a significant improvement in the feel and control of your trigger press without compromising the firearm’s safety systems.
Installing this trigger reduces the overall trigger pull weight by approximately 10-15%. This reduction makes it easier to maintain sight alignment during the firing sequence, especially during extended range sessions. You will also notice a 20% reduction in pre-travel—the slack you feel before the trigger engages the sear—and a 10% reduction in over-travel, meaning the trigger stops more quickly after the shot breaks. These changes combine to create a cleaner, more predictable break and a shorter reset, allowing for faster, more accurate follow-up shots.
Safety remains a top priority. The trigger features a center-mounted pivoting safety blade that functions identically to the factory design. This ensures that the trigger remains inoperable unless the safety is deliberately depressed, maintaining the same drop-safe and holster-safe characteristics required for responsible firearm ownership. This is a drop-in upgrade that works with the factory trigger bar and sear, though it can also be paired with a compatible spring kit for further refinement if desired.
Key specifications and fitment:
- Compatibility: Smith & Wesson SD (all variants), SDVE (all variants), and Sigma series (all generations).
- Weight reduction: 10-15% decrease from factory pull weight (actual pull weight varies by model and individual pistol).
- Travel reduction: Pre-travel reduced by 20%, over-travel reduced by 10%.
- Safety: Center-mounted pivoting trigger safety (retains factory drop-safety performance).
- Installation: Direct drop-in replacement for the factory hinged trigger; no frame modification or special tools required.
- Price: $50.00
This upgrade is ideal for anyone who uses their SD, SDVE, or Sigma for home defense, recreational shooting, or competition practice. It delivers a more consistent trigger pull and a shorter, crisper break without requiring a full action job. The result is a more controllable firearm that helps you shoot more accurately, shot after shot.