[ < Back to pistol triggers ]
Pistol TriggersValue Tier

Grayguns

Grayguns SIG P-Series Master Spring Set

Reduced-power mainspring and competition sear-spring set that lightens the double-action pull on a legacy DA/SA SIG P-Series pistol for a few dollars.

No image available

Affiliate links (?)

Check Best Price
View at Grayguns
Add to Build

Quick Specs

Price
$16
Weight
N/A
Brand
Grayguns
Category
pistol-trigger

Features

  • •17 lb (red) and 19 lb (blue) mainsprings
  • •Competition sear spring
  • •For E2-style strut/seat
  • •Fits P220/P226/P229

Compatibility Tags

family: handgunframe: sig-p226

Pros

  • +Lightens the double-action pull for a few dollars
  • +Includes both a 17 lb and 19 lb spring to tune for carry or competition
  • +Five-minute install, fully reversible
  • +Highest return-per-dollar trigger upgrade on the platform

Cons

  • −Lighter mainsprings can soften primer strikes; verify ignition with carry ammo
  • −Only fits E2-style struts and seats, not the oldest P-Series internals
  • −Sold direct by Grayguns with no retailer alternative

Compatible Platforms

+177 more

Custom

Custom Glock 19 Gen3 (Build From Scratch)

Custom

Custom Glock 17 Gen3 (Build From Scratch)

SIG Sauer

SIG P320 Full Size

SIG Sauer

SIG P320 Compact

SIG Sauer

SIG P320 X-Carry

SIG Sauer

SIG P320 X-Five Legion

Similar Products

Ghost Inc

Ultimate 3.5 Trigger Connector

$18.99

Grayguns

P320 Adjustable Straight Trigger Kit - Competition

$159

Grayguns

Adjustable Straight Trigger (HK VP9/VP40)

$125

Grayguns

Adjustable Hybrid Trigger (HK VP9/VP40)

$125

Related Guides & Articles

Guides

Best SIG P226 & P229 Upgrades 2026: Grayguns Triggers, Grips, Sights & Slides Ranked

Best SIG P226 & P229 Upgrades 2026: Grayguns Triggers, Grips, Sights & Slides Ranked

gear•12 min read
Springfield Hellion Accessories: 8 Bullpup Upgrades Ranked

Springfield Hellion Accessories: 8 Bullpup Upgrades Ranked

gear•12 min read
Best AR-15 for Hunting 2026: Top 5 Hunting Rifles Ranked (Wilson Combat, Springfield, Ruger, CMMG)

Best AR-15 for Hunting 2026: Top 5 Hunting Rifles Ranked (Wilson Combat, Springfield, Ruger, CMMG)

gear•12 min read

Articles

Springfield Echelon Alpha 4.0C: $599 Modular 9mm Carry Pistol

Springfield Echelon Alpha 4.0C: $599 Modular 9mm Carry Pistol

news•May 19, 2026
Springfield Model 2020 Heatseeker .308 Pistol: 12-Inch Bolt-Action Precision Without the NFA Paperwork

Springfield Model 2020 Heatseeker .308 Pistol: 12-Inch Bolt-Action Precision Without the NFA Paperwork

news•Apr 17, 2026
Browse all guides →Browse all articles →

Build Your Custom Configuration

Add the Grayguns SIG P-Series Master Spring Set to your build and see how it enhances your platform.

Start Building