Looking to customize your Glock pistol, one of the most popular modifications to make is to undercut the trigger guard. This is an easy and straightforward process that can be done with a few tools and the right technique. In this guide, we’ll show you how to properly undercut your Glock trigger guard for an improved grip and better trigger access.

Step-by-Step Guide to Cutting a Glock Trigger Guard

  • First, make sure your Glock is unloaded and the magazine is removed.
  • Put on the appropriate safety gear, including eye protection and gloves.
  • Use a hacksaw to cut the trigger guard, following the line of the frame. Make sure to cut slowly and evenly.
  • When the trigger guard is cut, use a file to smooth out any rough edges.
  • Reassemble the Glock and make sure the trigger guard is properly fitted.
  • Once everything is in place, test the trigger guard by pulling it back and making sure it does not come off.
  • If the trigger guard is properly fitted, you are now ready to reassemble the Glock.
  • Be sure to check the trigger guard for any signs of wear and tear. Replace it if necessary.

Tools and Materials Needed to Cut a Glock Trigger Guard

The tools and materials needed to cut a Glock trigger guard depend on the specific modifications you are trying to make. Generally, you will need a set of specialty tools, such as a trigger guard cutting jig, a Dremel tool with appropriate cutting bits, a file, a drill, and a variety of drill bits. You will also need materials, such as metal or plastic sheets, screws and nuts, and adhesives.

Depending on the specific modifications you are making, you may also need additional tools or materials. For example, if you are cutting an extended or modified trigger guard, you will need an extra metal or plastic sheet to extend the original trigger guard. Additionally, you may need to purchase additional screws and nuts, as well as adhesives, to secure the extended or modified trigger guard to the frame of the gun.

How To Undercut Glock Trigger Guard
How To Undercut Glock Trigger Guard

Safety Tips for Cutting a Glock Trigger Guard

Safety is paramount when you are working on any firearm, especially when it comes to cutting a Glock trigger guard. The most important safety tip is to always wear eye protection, as sparks can fly when cutting metal. Additionally, you should also wear work gloves to protect your hands from any sharp edges that may be created during the cutting process.

It is also important to ensure that the firearm is unloaded and cleared of any ammunition before you begin. It may be helpful to remove the recoil spring assembly, after verifying that the firearm is unloaded, to make the cutting process easier. Additionally, it is important to secure the firearm in a vice or other secure gripping device to keep it from moving while you are cutting.

When you are ready to begin cutting, use a Dremel or other rotary tool and cutting disk that is designed for cutting metal. Make sure that the guard is firmly clamped in the vice and that you are cutting in a well-ventilated area. As you cut, keep the disk at a 90° angle to the trigger guard, taking care to keep the disk away from the trigger.

By following these safety tips, you can ensure that your cutting process is safe and successful.

Common Mistakes to Avoid When Cutting a Glock Trigger Guard

The Glock trigger guard is an integral part of the Glock pistol, and it must be handled with care when making modifications to the firearm. Some of the most common mistakes to avoid when cutting a Glock trigger guard include:

• Not using the correct tools. The Glock trigger guard requires specialized tools for safe and precise cutting. Using the wrong tools can create an uneven cut or even damage the trigger guard.

• Not measuring twice. When making modifications to the Glock trigger guard, it is important to measure twice before cutting. This will help ensure that the cut is the correct size and shape.

• Not using the proper lubricant. It is important to use the proper lubricant when cutting the Glock trigger guard. Using the wrong lubricant can cause the trigger guard to bind and make it difficult to operate.

• Not wearing protective gear. It is important to wear protective gear such as safety glasses and gloves when making modifications to the Glock trigger guard. This will help protect your eyes and hands from any flying debris.

• Not following instructions. It is important to follow the instructions provided with the Glock trigger guard when making modifications. Not following the instructions could result in damage to the trigger guard or even the firearm itself.

Benefits of Cutting a Glock Trigger Guard

The Glock trigger guard is a key component of the Glock handgun, and it has several benefits that make it an attractive choice for many gun owners. First, the trigger guard provides an extra layer of protection between the shooter’s finger and the trigger. This is especially important for shooters with large hands, as it helps to prevent accidental discharges due to finger slippage.

Additionally, the trigger guard is designed to help prevent the gun from being dropped and accidentally firing. This can be especially important in environments where there is a possibility of a person or object coming into contact with the gun. Finally, the trigger guard helps to keep debris out of the trigger area, which can help keep the gun functioning properly.

Frequently Asked Questions [FAQs]

What Is Undercutting Glock Trigger Guard?

Undercutting Glock trigger guard is a process of machining the trigger guard to create a higher grip angle, which allows for a more comfortable and natural grip. This is often done to give shooters with smaller hands an improved grip on the gun.

What Tools Are Needed To Undercut Glock Trigger Guard?

To undercut Glock trigger guard, you will need a Dremel tool with a diamond-coated grinding bit, a drill and a 3/16″ drill bit, a flat file, and safety glasses.

Is Undercutting Glock Trigger Guard Safe?

Undercutting Glock trigger guard is generally considered safe as long as the process is done properly and with care. It is important to take your time and follow the steps outlined in the instructions carefully, as any mistakes could cause the gun to malfunction.

How Much Should Be Undercut From The Trigger Guard?

The amount of material to be removed from the trigger guard should be between 0.010″ and 0.015″. Removing too much material can cause the trigger to move too far back, making it difficult to pull the trigger.

How Long Does It Take To Undercut Glock Trigger Guard?

The time it takes to undercut Glock trigger guard can vary depending on the user’s experience and skill level. On average, it should take about 30 minutes to complete the process.

Is Undercutting Glock Trigger Guard Complicated?

Undercutting Glock trigger guard is not too complicated of a process, but it is important to follow the instructions carefully and pay close attention to the amount of material being removed. It is also important to wear safety glasses and use the proper tools.

How Do I Know If I Have Undercut The Trigger Guard Enough?

To test if the trigger guard has been undercut enough, you can try pulling the trigger and see if the trigger moves freely and smoothly. If it does, then you have successfully undercut the trigger guard.

What Happens If I Undercut The Trigger Guard Too Much?

You undercut the trigger guard too much, it can cause the trigger to move too far back and make it difficult to pull the trigger. In this case, it is best to use a file to remove some of the excess material and test the trigger again to make sure it moves freely and smoothly.


By following the steps outlined in this article, you can easily modify the trigger guard of your Glock gun to provide an improved grip and better control. This procedure is a simple and safe one that requires minimal tools and effort, making it a great way to upgrade your Glock without breaking the bank.

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