Apex Tactical 107120 Spring Kit 40 S&W S&W SD/SDVE

If you’re running a Smith & Wesson SD or SDVE in .40 S&W, you already know the stock trigger leaves a lot to be desired. Too heavy, too mushy, too much slack. Apex Tactical fixed that with their 107120 Spring Kit. This is the same crew that builds triggers for competition shooters and law enforcement, so you’re getting proven hardware, not guesswork.

This spring kit delivers a cleaner, smoother pull and a shorter, more positive reset. It’s built for duty or carry use—meaning it’s reliable enough for a belt gun, not just a range toy. You’ll feel the difference the first time you press that trigger: less stacking, less gritty creep, just a straight break and a snap back to reset. No mush, no drama.

The kit works as a standalone upgrade or paired with the Apex SD Polymer Action Enhancement Trigger if you want the full package. It includes three springs: a trigger return spring, a striker block spring, and an SD striker spring. That’s everything you need to get the factory internals working the way they should have from the start. Drop-in install, no fitting required. If you can field-strip your pistol, you can swap these springs in under ten minutes.

Price is $27.50. That’s less than a tank of gas in Miami, and it’ll make your S&W shoot like a gun costing twice as much. We’ve tested these in-house and they hold up to hot .40 loads and high round counts without issue. The striker spring swap does lighten the trigger pull slightly, so keep that in mind for carry—but for the .40, it’s still well within safe margins, and you get a much better feel.

We’re Miami Shooters Supply, a licensed FFL dealer right here in Miami, Florida. We ship to all 50 states, so whether you’re in Hialeah, Houston, or Honolulu, we’ll get this kit to your local FFL fast. No fluff, no upselling—just good gear at a fair price. Stop fighting that heavy trigger and grab an Apex kit. Your groups will thank you.

Note: This kit is specifically for the .40 S&W model of the S&W SD/SDVE. Check your caliber before ordering. Ships nationwide via FFL transfer from Miami Shooters Supply.