Apex Tactical Duty/Carry Action Enhancement Kit – .357 Sig
If you’re running an S&W M&P in .357 Sig and the factory trigger isn’t cutting it, this is the fix. Apex Tactical builds this kit specifically for duty and carry guns—no race gun nonsense, just a clean, repeatable pull that keeps you on target. We’re talking a consistent 5.0 to 5.5 lbs trigger weight, shorter over-travel, and a reset that actually lets you feel the click. No mush, no guessing.
This isn’t a bag of random springs. Apex machines each sear from bar stock, includes their Duty/Carry spring set, the Ultimate Striker Block kit, and a slave pin to make the swap easier. Everything drops in, but we recommend having a qualified armorer handle the install—especially if you’re carrying this gun for work. Miami heat and humidity don’t care about shortcuts.
Works on 9mm, .40 S&W, and .357 Sig M&P pistols. Yes, your .357 Sig model is covered. The kit is all metal, no plastic compromise. You get a shorter reset, reduced over-travel, and a trigger that breaks like glass without dropping below safe carry weight.
Key Specs:
- Compatibility: S&W M&P in 9mm, .357 Sig, .40 S&W
- Pull Weight: 5.0 – 5.5 lbs (engineered for duty use)
- Includes: Fully machined sear, Duty/Carry spring set, Ultimate Striker Block kit, slave pin
- Material: Metal components
- Installation: Drop-in; armorer or gunsmith recommended
- Trigger feel: Reduced over-travel, shortened reset, clean break
- Intended use: Duty, carry, defensive applications
Price: $110.00
Down here at Miami Shooters Supply, we ship this kit nationwide to any licensed FFL. Whether you’re in Hialeah or Honolulu, we’ll get it to your dealer. No games, no backorders—just solid parts from Apex Tactical, packed and shipped out of Miami.
Drop by the shop or order online. We know triggers, we know M&Ps, and we know what works in the real world. This kit does.


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