TriggerTech Legacy Special ACE Trigger System for Glock Gen 1-5 9mm & .40 S&W Adjustable Performance Trigger

TriggerTech Legacy Special ACE Trigger System for Glock Gen 1-5

The TriggerTech Legacy Special ACE Trigger System is a revolutionary trigger upgrade engineered to dramatically improve the performance, feel, and precision of compatible Glock pistols. Featuring patented Zero Creep Technology™, a fully adjustable trigger pull, and an OEM-style Glock safety blade, the Legacy Special delivers a crisp, 1911-inspired trigger break while maintaining the familiar handling characteristics Glock owners trust.

Whether you're competing, training, or configuring your pistol for everyday carry, the ACE Trigger System offers an exceptional combination of tunability, reliability, and safety.

A Revolution in Glock Performance

The ACE Trigger System completely reimagines Glock trigger mechanics by eliminating the parasitic movement and unnecessary friction found in conventional trigger systems.

• Patented Zero Creep Technology™ delivers an exceptionally crisp trigger break.
• CLKR Technology™ allows precise adjustment of trigger pull weight and reset.
• 1911-inspired trigger feel with a clean break and positive reset.
• Fully adjustable trigger pull from approximately 2.5 to 6.0 pounds.
• One of the most significant performance improvements ever developed by TriggerTech.

Designed for Precision and Control

The modular ACE Trigger System allows shooters to customize trigger characteristics to match their shooting style.

• Heavy take-up spring installed from the factory.
• Includes light take-up spring for additional tuning.
• Includes reduced-power firing pin safety plunger spring.
• CLKR adjustment screw allows precise pull weight tuning.
• Adjustable trigger pull from 2.5 to 6.0 pounds.

Note: Trigger settings below 3.5 pounds are intended for competition and recreational shooting only and are not recommended for concealed carry or duty applications.

Innovative Three-Module Design

Unlike conventional Glock trigger systems, the ACE Trigger utilizes three independent modules that work together to provide exceptional consistency and control.

• Lever Module
• Sear Module with CLKR Technology™
• Disconnect Module (Backplate)

This modular architecture eliminates many of the compromises found in traditional one-piece connector designs.

Key Design Innovations

• Separate Disconnect Module and Sear Module
• True pivoting firing pin safety reduces friction and eliminates grit.
• Patented Zero Creep Technology™ for an exceptionally crisp break.
• CLKR Technology™ enables repeatable pull weight adjustments.
• Fully modular system for maximum customization.

Safety Without Compromise

The Legacy Special maintains the familiar Glock-style safety blade while incorporating several engineering improvements designed to maximize consistency across OEM Glock pistols.

• OEM-style integrated safety blade.
• Frame-decoupled safety system independent of frame tolerances.
• Redesigned safety stop for broader compatibility across production variations.
• Disconnect Module incorporates a relief pocket to increase striker clearance during extreme shock events.
• Engineered and extensively tested for drop safety and rough handling performance relative to applicable SAAMI drop test protocols.

Built to Perform. Built to Last.

Every ACE Trigger System is manufactured using premium materials and durable protective finishes for exceptional reliability under demanding conditions.

• Premium corrosion-resistant materials
• Protective surface coatings
• Contamination-resistant Zero Creep Technology™
• Field tested through high round counts and harsh environments
• Designed for long service life

What's Included

• Legacy Special ACE Trigger System (3 Modules)
• Heavy Lever Take-Up Spring (installed)
• Light Lever Take-Up Spring
• Light Safety Plunger Spring
• Pin Tool
• 5/64" Allen Key

Compatibility

Compatible with OEM Glock Gen 1-5 Standard Frame Pistols chambered in 9mm and .40 S&W:

• G17
• G17L
• G19
• G19X
• G22
• G23
• G24
• G26
• G27
• G34
• G35
• G45
• G47

Gen 5 Note: Installation requires removal of a small frame tab. Refer to the manufacturer's installation instructions.

Not Compatible

• Aftermarket Glock frames
• Aftermarket internal components
• Aftermarket magazines
• Non-standard Glock frame sizes
• Gen 6 models

For maximum reliability, TriggerTech recommends using only OEM Glock firearms, OEM Glock internal components, and standard OEM Glock magazines.

Installation Notes

The ACE Trigger System is intended for experienced armorers and qualified gunsmiths familiar with Glock fire control systems. Improper installation may compromise firearm safety, affect function, and void the manufacturer's warranty.

After installation, all factory safety functions should be thoroughly inspected and verified before live-fire use.

Key Features

• Complete modular trigger system for Glock pistols
• OEM-style Glock safety blade
• Patented Zero Creep Technology™
• CLKR Technology™ adjustable trigger system
• 1911-inspired trigger feel
• Adjustable 2.5–6.0 lb trigger pull
• USPSA and IPSC approved
• Designed for competition, recreational shooting, concealed carry, and duty use when properly configured
• Premium materials and corrosion-resistant finishes

Specifications

• Manufacturer: TriggerTech
• Product: Legacy Special ACE Trigger System
• Compatibility: Glock Gen 1-5 Standard Frame 9mm & .40 S&W
• Trigger Pull: Adjustable 2.5–6.0 lbs
• Technology: Zero Creep Technology™, CLKR Technology™
• Safety: Glock-style integrated safety blade
• Competition Approved: USPSA & IPSC

Frequently Asked Questions

Will this fit Gen 5 Glock pistols?

Yes. Gen 5 compatible models require removal of a small frame tab during installation.

Can I adjust the trigger pull weight?

Yes. The included springs and CLKR Technology™ allow adjustment from approximately 2.5 to 6.0 pounds.

Is this suitable for concealed carry?

Yes, when configured at 3.5 pounds or higher. Trigger settings below 3.5 pounds are intended for competition and recreational shooting only.

Does this work with aftermarket Glock parts?

TriggerTech recommends using only OEM Glock firearms, OEM internal components, and OEM magazines for optimal performance.

Is professional installation recommended?

Yes. Installation should be performed by an experienced gunsmith or qualified Glock armorer.

What makes the ACE Trigger different?

Its modular design, Zero Creep Technology™, pivoting firing pin safety, and CLKR adjustment system provide a cleaner break, reduced friction, and greater tunability than traditional Glock trigger systems.

Is this competition legal?

Yes. The Legacy Special ACE Trigger System is approved for USPSA and IPSC competition.

Important Notes

• Use only with OEM Glock firearms and factory internal components.
• Always perform a complete function and safety check after installation.
• Trigger settings below 3.5 lbs are intended for competition use only.

Experience a new standard in Glock trigger performance with the TriggerTech Legacy Special ACE Trigger System. Combining innovative engineering, exceptional adjustability, and premium construction, it delivers a cleaner break, shorter reset, and greater confidence every time you press the trigger.