Description
If you’re running a Smith & Wesson SD or Sigma and you’ve been fighting that factory hinged trigger, this drop-in from Apex Tactical is the fix you’ve been looking for. Here at Sunshine Gun Shop in Florida, we see a lot of these pistols come through—solid guns, but the stock trigger leaves a lot to be desired. That’s where the Apex 107003 Action Enhancement Trigger steps in.
This is a direct replacement part. No fitting, no filing, no gunsmith visit. You pull the old hinged trigger out, drop this solid polymer body in, and you’re good to go. The center-mounted pivoting safety keeps things legal and safe, but the feel is night and day. Apex shaved off about 20% of the pre-travel and around 10% of the over-travel compared to factory. That means a shorter, cleaner pull with less wasted movement. The rounded face sits flat against your finger—no sharp edges, no pinching, just a smooth, consistent press every time.
It works as a stand-alone upgrade, but if you’ve already got an Apex SD or Sigma spring kit in the gun, this trigger pairs perfectly. It’s designed for the SD9, SD40, SD357, SDVE9, SDVE40, SDVE357, and the Sigma series. So whether you’re carrying it concealed in the heat down here or keeping it in the nightstand, this trigger gives you more control without changing the gun’s reliability.
Now, if you’re outside of Florida, don’t sweat it. Sunshine Gun Shop is a licensed FFL dealer, and we ship to all 50 states. We know the ins and outs of interstate transfers, and we’ll get this out the door fast. Just make sure your receiving FFL is ready to go, and we handle the rest.
Price is $55. Straightforward part, straightforward price. No fluff. If you want to shoot your SD or Sigma better without dumping a bunch of money into it, this Apex trigger is the way to go. Stop by the shop or order online—we’ve got you covered.





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