Spring Kit for SDVE

If you’ve been shooting your Smith & Wesson SDVE or Sigma and wish the trigger pull was a little lighter and smoother, this spring kit is exactly what you’re looking for. It addresses the heavy, gritty factory trigger feel that many shooters find tiring at the range or hard to manage for accurate shots. By swapping in a few springs, you’ll drop the pull weight by about 2 pounds, smooth out the take-up, and get a crisper reset—all while keeping the gun reliable for everyday carry or home defense. No need to send it off to a gunsmith; these are direct drop-in parts that any handy owner can install at home.

Will this fit my gun?

• Smith & Wesson SD9 VE
• Smith & Wesson SD40 VE
• Smith & Wesson Sigma series (SW9VE, SW40VE, and similar models)

Key features

• Reduces trigger pull weight by approximately 2 lbs – noticeable difference without going too light
• Smooths out the gritty take-up for a cleaner break
• Improves trigger reset for faster follow-up shots
• Direct drop-in – no filing, fitting, or permanent modifications required
• Still suitable for duty, carry, and personal protection use

Install difficulty: 3 out of 5

This is a straightforward spring swap, but you’ll need a few tools: a small punch or paperclip for the trigger pin, a small flathead screwdriver, and maybe a pair of tweezers for the sear spring. Plan on about 20-30 minutes if you’ve done this before; 45 minutes to an hour if it’s your first time. Watch our install video on the product page—it walks you through step by step.

Frequently asked questions

Will this make my trigger too light for carry?

No. The roughly 2-pound reduction brings the pull down into a comfortable range for accurate shooting while still staying heavy enough for safe carry. Many shooters find it perfect for both range use and personal protection.

Do I need to replace any other parts when installing this kit?

Nope. This kit includes all the springs you need. Just remove the old ones and drop these in. The factory trigger, sear, and striker assembly stay as-is.

Will this void my factory warranty?

It can, since you’re modifying the fire control group. That said, these springs won’t damage your gun, and you can always swap the factory springs back in if you ever need to send it in for service.

We ship all orders within one business day, and this kit comes with our standard lifetime warranty against manufacturing defects. If a spring ever breaks or fails, we’ll replace it free of charge—just give us a call or shoot us an email.