This step-by-step video demonstrates how to install the NDZ Adjustable Trigger Housing on your Glock Gen 4 pistol.

Why Upgrade Your Glock with the NDZ Adjustable Trigger Housing?

The factory trigger housing on your Glock serves its purpose, but for enthusiasts and competitive shooters, it’s just the starting point. Here’s why upgrading to the NDZ Adjustable Trigger Housing should be your next modification:

Eliminate Trigger Overtravel

One of the biggest advantages of our adjustable trigger housing is the ability to eliminate unnecessary overtravel:

• Reduces wasted motion after the trigger breaks
• Creates a definitive stopping point for consistent shots
• Allows for faster return to reset position
• Improves accuracy by preventing unnecessary movement

Enhanced Reset Performance

Perhaps the most noticeable improvement comes in the form of trigger reset. Our adjustable housing provides:

• Shorter reset distance for faster follow-up shots
• More tactile and audible reset feedback
• Elimination of the mushy feeling common in stock triggers

Improved Shooting Precision

Whether you’re a competitive shooter or simply demand the best from your firearm, our adjustable trigger housing delivers:

• More consistent shot placement with reduced trigger movement
• Customizable trigger feel to match your shooting style
• Performance that rivals custom gunsmith work at a fraction of the cost

What You’ll Need

Before starting this installation, gather these essential tools and components:

Required Tools for Glock Trigger Housing Installation

• Punch set (3/32″ recommended)
• Small hammer or mallet
• Needle-nose pliers
• Small flathead screwdriver
• Glock disassembly tool (or equivalent)
• Blue Loctite (optional but recommended)

Recommended Parts

• NDZ Adjustable Trigger Stop Control Housing for Glock Gen 4 (9MM)
• NDZ Performance Enhanced Trigger Spring Kit (optional for further customization)
• NDZ Performance Polished Trigger Bar (for the smoothest possible action)

Step-by-Step Installation Guide

Follow these steps carefully to ensure proper installation of your new NDZ Adjustable Trigger Stop Control Housing. This guide follows the same process shown in our video tutorial.

Step 1: Safety & Preparation (0:00-1:16)

• Remove the magazine from your Glock
• Clear the chamber and visually confirm the firearm is completely unloaded
• Double-check by looking and feeling the empty chamber
• Gather all required tools before beginning

Never skip these safety steps – they’re our top priority in any firearm modification.

Step 2: Removing Glock Slide (1:16-1:33)

• Remove the slide from the frame
• Take out the recoil spring assembly and barrel
• Set these components aside in a safe location

Step 3: Removing Pins & Factory Trigger Housing (1:33-2:04)

• Using your punch, push out the trigger housing pin located at the rear of the frame
• Carefully remove the slide lock spring and slide lock
• With the pins removed, carefully lift out the locking block
• Detach the trigger bar from the connector
• Lift out the entire trigger housing assembly from the frame
• Set aside any components you’ll be reusing

Step 4: Overview & Adjustment of NDZ Trigger Housing (2:04-3:02)

• Inspect your new NDZ Adjustable Trigger Stop Control Housing
• Note the adjustment screw that will control trigger overtravel
• Understand how the adjustment mechanism works
• Make initial adjustments according to your preferences

Step 5: Installing Trigger Connector & Spring (3:02-4:16)

• If using our Enhanced Trigger Spring Kit, install it now
• Install your trigger connector properly in the new housing
• Apply a small amount of gun oil to contact points
• Ensure proper alignment of all components

Step 6: Reassembling & Installing Trigger Housing (4:16-4:58)

• Insert the trigger housing into the frame
• Reconnect the trigger bar to the connector
• Ensure all components align properly before continuing

Step 7: Reinstalling Pins & Slide Release (4:58-5:42)

• Reinstall the locking block and trigger pins
• Replace the slide lock spring in the correct orientation
• Secure all pins fully to ensure proper function

Step 8: Final NDZ Adjustable Trigger Housing & Function Check (5:42-6:07)

• Reinstall the slide onto the frame
• Perform function tests with the UNLOADED firearm:
  • Check trigger reset and break
  • Ensure disconnector functions properly
  • Verify all safeties are working correctly

Step 9: Testing & Fine-Tuning Trigger Housing (6:07-6:35)

This is where the magic happens – customizing your trigger to your exact preferences:

• Test the trigger action to evaluate your initial adjustment
• Fine-tune the overtravel stop screw as needed
• Test trigger reset repeatedly to ensure optimal performance
• Secure your settings with a tiny drop of Blue Loctite once you’ve found your perfect setup

Never skip the final safety checks before loading live ammunition.

Performance Comparison: Stock vs. NDZ Glock Trigger Housing

When properly installed, your NDZ Performance adjustable trigger housing will transform your Glock’s performance. Here’s what to expect:

Characteristic	Stock Glock	With NDZ Adjustable Housing
Trigger Pull	5.5-6.5 lbs	3.5-5.0 lbs (adjustable)
Pre-travel	N/A	N/A
Reset Distance	Long	Short and positive
Overall Feel	Mushy, inconsistent	Crisp, clean break

Expert Installation Tips for Your NDZ Adjustable Trigger Housing

For those looking to perfect their trigger setup with the NDZ Adjustable Trigger Housing, consider these expert recommendations:

Finding the Perfect Overtravel Setting

The key benefit of our trigger housing is eliminating unnecessary overtravel. Here’s how to find your perfect setting:

• Begin with the adjustment screw backed out (minimal resistance)
• Slowly tighten the screw in small increments (¼ turn at a time)
• Test after each adjustment until you feel a definitive stop right after the trigger breaks
• Avoid over-tightening which can prevent proper trigger function

Evaluating Reset Performance

A proper overtravel setting dramatically improves reset performance:

• Listen for the audible “click” of the reset
• Feel for the tactile feedback
• Test how quickly you can release to reset position and fire again
• Adjust until you achieve the shortest possible reset without compromising reliability

Optimizing for Your Shooting Style

• Competition shooters typically prefer a very minimal overtravel setting
• Defensive carry setups often benefit from a slightly longer overtravel for reliability
• Consider your primary use case when making your final adjustments

Shop Glock Trigger Housing Parts & Accessories

Ready to upgrade your Glock with the NDZ Adjustable Trigger Housing? NDZ Performance offers everything you need:

Click Here to Shop NDZ Adjustable Trigger Stop Control Housing

Click Here to Browse Complete Trigger Upgrade Kits

Click Here to View All Glock Accessories

Frequently Asked Questions About Glock Trigger Housing Installation

What exactly does the NDZ Adjustable Trigger Housing do?

The NDZ Adjustable Trigger Housing replaces your factory trigger housing and features an adjustment screw that allows you to eliminate excess overtravel after the trigger breaks. This creates a more precise trigger feel, faster reset, and improved shooting accuracy.

Will installing the NDZ Adjustable Trigger Housing affect my warranty?

Most aftermarket modifications, including trigger housing upgrades, may affect your manufacturer’s warranty. However, the performance benefits often outweigh this consideration for serious enthusiasts.

Is the NDZ Adjustable Trigger Housing legal in all states?

Trigger modifications are subject to varying regulations. While our adjustable trigger housing is legal in most states, some jurisdictions have restrictions on trigger modifications for carry weapons. Always check your local laws before modifying.

Can I install this on other Glock models?

This guide specifically covers Glock Gen 4 9mm models. While similar principles apply to other generations and calibers, some components and steps may differ. Visit our website to see compatibility with your specific Glock model.

How often should I check my trigger adjustments?

We recommend checking your settings after every 500 rounds initially, then every 1,000 rounds once you’ve confirmed stability. Applying Blue Loctite to the adjustment screw will help maintain your preferred settings.

Need Help With Your Glock Trigger housing Installation? (6:35)

Still have questions about installing your NDZ Adjustable Trigger Housing? Our team of Glock enthusiasts is ready to help:

• Comment on our YouTube video with your specific questions
• Browse our website for additional installation tips and guides
• Follow us on social media for more Glock upgrade ideas and demonstrations

Remember to share your upgraded Glock with us on social media using #NDZPerformance and #GlockTriggerUpgrade – we love seeing our customers’ builds!

Connect With NDZ Performance for More Glock Upgrades

• Subscribe to our YouTube Channel for more installation videos
• Visit Our Website to browse our complete catalog of Glock upgrades
• Follow Us on Instagram for customer builds and new product announcements
• Follow Us on Twitter for the latest NDZ Performance updates

This comprehensive guide was created by NDZ Performance, specialists in precision Glock upgrades since 2010. For more expert advice on Glock modifications, visit www.ndzperformance.com or contact our customer support team with any installation questions.

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Disclaimer: Firearm modifications should only be performed by those comfortable with gunsmithing basics. Always follow safety protocols and check local regulations regarding firearm modifications. NDZ Performance recommends having your modified firearm inspected by a qualified gunsmith if you have any concerns about safety or function. All product names and specifications are subject to change. Visit our website for the most current information.