Glock Gen 1–4 – 6.0 lb Extra Power Trigger Spring
PLEASE DOUBLE CHECK DETAILS, MODEL FITMENT, TRIGGER HOUSING TYPE, SPRING ORIENTATION, AND FUNCTION BEFORE PURCHASE OR INSTALLATION.
The IronKells Armory 6.0 lb Extra Power Trigger Spring is a drop-in Glock trigger tuning spring for compatible Glock Gen 1–4 pistols. It replaces the factory trigger spring with a stronger assisting spring designed to pull the trigger rearward with more force, reducing perceived trigger pull weight while helping the trigger return feel more positive.
This is one of those tiny parts people overlook until they run a good one. If you are tuning a Gen 1–4 Glock trigger and want a lighter-feeling press without reducing striker spring force, this spring makes sense. It also pairs well with connector changes and polished internals when the full trigger stack is built correctly and tested properly.
Quick Hits
- 6.0 lb extra power trigger spring
- Designed for compatible Glock Gen 1–4 trigger housings
- Assists rearward trigger movement to reduce perceived pull weight
- Does not reduce striker spring force
- Drop-in replacement in compatible trigger housings
- Function testing required after installation
Fitment
- Fits compatible Glock Gen 1 pistols.
- Fits compatible Glock Gen 2 pistols.
- Fits compatible Glock Gen 3 pistols.
- Fits compatible Glock Gen 4 pistols.
- Designed for standard Glock Gen 1–4 trigger housings that use this trigger spring style.
- Useful for trigger tuning on compatible full-size, compact, subcompact, and large-frame Gen 1–4 Glock platforms.
Does NOT Fit
- Does not fit Glock 42.
- Does not fit Glock 43.
- Does not fit Glock 43X.
- Does not fit Glock 48.
- Does not fit Glock Gen 5 pistols.
- Do not assume compatibility with Glock Gen 6 unless your exact spring supplier confirms Gen 6 fitment.
- Do not assume compatibility with non-Glock platforms, clone frames, or unsupported aftermarket trigger housings.
- Not a striker spring, connector, safety plunger spring, trigger shoe, trigger bar, or complete trigger kit.
What It Does
This spring increases rearward trigger assist. In plain English, it helps pull the trigger rearward with more power, which can reduce perceived trigger pull weight and keep trigger return feeling more positive in a properly matched Gen 1–4 setup. It does not replace the connector or striker spring, but it can noticeably change trigger feel when paired with the right parts.
Why It’s Worth It
For a small, cheap part, this punches above its weight. It is useful, easy to bundle, and gives a real trigger-feel improvement without pretending to be magic. This is the kind of upgrade that earns its place because it changes how the gun feels, not because somebody slapped tactical poetry on a baggie.
Specs
- Brand: IronKells Armory
- Product type: Trigger spring
- Spring weight: 6.0 lb
- Application: Glock Gen 1–4 trigger tuning
- Function: Extra-power rearward trigger assist
- Effect: Helps reduce perceived trigger pull weight in compatible setups
- Reliability note: Does not reduce striker spring force
- Install type: Drop-in replacement in compatible Gen 1–4 trigger housings
- Compatibility exclusions: Glock 42, Glock 43, Glock 43X, Glock 48, Gen 5, and unverified Gen 6 setups
- Color / finish: Spring steel finish may vary by production batch
What’s Included
One 6.0 lb extra power trigger spring.
Note: Firearm, trigger housing, trigger bar, connector, striker spring, tools, and other accessories are not included unless your exact SKU/package states otherwise.
Tools Needed
A Glock punch or armorer tool is usually all you need to access the trigger housing and swap the spring. A bench mat helps. So does not launching tiny parts into low earth orbit.
Install Notes
- This is a drop-in part, but proper installation still matters.
- Install the spring correctly and verify spring orientation.
- Verify trigger return and trigger reset before live fire.
- Perform full unloaded function checks after installation.
- Live-fire test with your actual ammunition before relying on the setup.
- If the pistol already has mixed aftermarket internals, confirm the whole trigger stack is working together instead of assuming every problem is the new part’s fault.
Verify Before You Buy
Verify your pistol is a compatible Glock Gen 1–4 model and not a Glock 42, 43, 43X, 48, Gen 5, or unverified Gen 6 pistol. Also verify your current trigger housing and internals if the gun already has aftermarket trigger parts installed. Trigger tuning rewards discipline and punishes guessing.
Helpful Buying Paths
Browse Glock parts, compare Glock Gen 5 parts, check related Glock Gen 1-4 parts, or shop related triggers for compatible parts and accessories.
Disclaimers
⚠ Glock Disclaimer
IronKells Armory LLC is not affiliated with, endorsed by, or sponsored by Glock, Inc. or Glock Ges.m.b.H.
All references to GLOCK® are used solely to identify firearm models, parts compatibility, and fitment information for customers. Glock is a federally registered trademark of Glock, Inc. and Glock Ges.m.b.H.
Any product sold on this site referencing Glock is aftermarket, not OEM, and is not manufactured by Glock. Glock does not warranty, authorize, or guarantee the performance, safety, or reliability of any third-party components or modifications.
Firearm parts should be installed by a qualified armorer or gunsmith. Improper installation, modification, trigger work, spring changes, or use of aftermarket components may affect firearm safety, trigger safety, striker safety operation, reset, reliability, and void manufacturer warranties. By purchasing and installing third-party parts, the buyer assumes all responsibility for safe handling, installation, compatibility verification, safety checks, function testing, live-fire validation, and use of their firearm and accessories.
⚠ Install & Compatibility Disclaimer
Installation should be performed by a qualified armorer or gunsmith. Buyer is responsible for verifying compatibility, correct spring orientation, safe installation, trigger return, trigger reset, trigger safety operation, safe striker release, unloaded function testing, live-fire validation, and safe operation.
