If you’re running a Smith & Wesson SD9, SD40, SD357, SDVE9, SDVE40, SDVE357, or any Sigma variant, you already know the factory hinged trigger leaves a lot to be desired. Too much creep, a gritty take-up, and that hinge can shift under your finger at the worst time. The Apex Tactical 107003 Action Enhancement Drop-In Trigger fixes all that without sending your gun to a smith.
This is a solid polymer trigger body with a center-mounted pivoting safety—no more hinge. Apex Tactical, out of Arizona, built this to replace the factory part directly. No filing, no fitting, no guesswork. The rounded face gives you a consistent, comfortable pad placement shot after shot. It cuts pre-travel by about 20% and over-travel by 10% compared to the stock trigger. That means a shorter, cleaner pull with a positive stop.
It works as a standalone upgrade, but if you’ve already dropped in an Apex SD or Sigma spring kit, this trigger finishes the job. The combination tightens up the action noticeably. You’ll feel the difference on the first dry-fire at the kitchen table.
Here at Firearms Montana in Billings, we handle a lot of carry guns and range beaters. The Sigma and SD series are tough, reliable pistols, but the trigger has always been the weak link. Apex Tactical has been fixing that for years, and this drop-in is the simplest way to bring your pistol up to modern performance standards. It’s a practical upgrade for anyone who shoots their SD or Sigma regularly—whether you’re punching paper at the range or carrying for personal defense.
Price is $55. That’s a lot less than a new pistol, and it’ll make the one you have shoot like a different gun.
Firearms Montana ships nationwide via FFL. We’re a licensed dealer right here in Billings, Montana, and we ship to all 50 states. Give us a call or stop by if you’re local—we can show you the trigger in hand and answer any questions.
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