ISMI Trigger Spring for Sig Sauer P320 Minus 20 Percent
Designed to fit Sig Sauer Models: P320.
Tune your trigger with race-grade hardware. The ISMI Minus-20% Trigger Spring for the Sig Sauer P320 reduces the spring force approximately 20% versus the factory unit to deliver a lighter, crisper trigger feel and faster reset while retaining predictable, repeatable function when installed and tested correctly. A precision replacement trigger spring manufactured from aerospace-grade chrome-silicon alloy. Each spring is heat-treated, shot-peened, and stress-relieved to hold tighter tolerances and deliver long, fatigue-resistant service life compared with music-wire alternatives. Get yours at NDZ Performance today!
Features:
- ~20% lighter spring force: Noticeably reduced trigger effort and a snappier feel.
- Racing-grade durability: Chrome-silicon construction with heat treat and shot-peen for long life and stable rates.
- Tighter tolerances: More consistent trigger timing and repeatable feel over thousands of cycles.
- Direct replacement: Drop-in fitment for P320 trigger housings (confirm model compatibility).
See our complete line of Sig P320 Products here
Disclaimer: "Sig Sauer" is a federally registered trademark of SIG Sauer, Inc. or SIG Sauer GmbH & Co.KG. NDZ Performance has NO affiliation in any manner with, or otherwise endorsed by, SIG Sauer, Inc. or SIG Sauer GmbH & Co.KG. The use of the word "Sig Sauer " on this page is merely to identify which firearm these parts or components are compatible with.
Note: NDZ always recommends any part be installed by a qualified and trained gunsmith. NDZ promotes the use of safety practices and gear when working on any firearm.
Manufacturer SKU: ISMI-TS-P320-MINUS20
Brand: ISMI
Type: Trigger Spring
Country/Region Of Manufacture: Made in the USA.
NDZ Custom Kit: No
For Gun Make: Sig Sauer
For Gun Model: P320
| Gun Make | Sig Sauer |
|---|---|
| Product Type | Trigger Spring |
| Product Model | Minus 20% Power |
| Product Material | Chrome Silicon |
| Gun Model | P320 |
| Gun Model | M17 |
| Gun Model | M18 |
| Gun Model | X-Series |
| Gun Model | P320MAX |
| Gun Model | XFIVE Legion |
3 Reviews Hide Reviews Show Reviews
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Trigger Spring P320 Minus 20 Percent
this is good, helps with with my trigger squeeze but the trigger reset sucks, but that to be expected with this type of of spring.
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Lighter trigger pull
After install of this spring, my trigger scale registered as low as 3.5lbs on trigger pull. A 2lb reduction!
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Lighter is nicer!
This spring replacement dropped my pull to 3.5 lbs. Great for range!