How to Adjust an Accu-Wedge AR15: A Comprehensive Guide
The AR-15 platform is known for its modularity and adaptability, allowing users to customize nearly every aspect of their rifle. One common modification is the installation of an Accu-Wedge, a small polymer buffer designed to eliminate unwanted movement between the upper and lower receivers. This guide provides a detailed, step-by-step explanation of how to adjust an Accu-Wedge AR15, ensuring a snug and reliable fit.
Understanding the Accu-Wedge and Its Purpose
Before diving into the adjustment process, it’s crucial to understand what an Accu-Wedge is and why you might want to install one. The Accu-Wedge is a polymer buffer that sits inside the lower receiver, behind the rear takedown pin. Its primary purpose is to eliminate the play or wobble that can sometimes occur between the upper and lower receivers of an AR-15. This play, while often cosmetic, can affect accuracy and the overall feel of the rifle. By filling the gap, the Accu-Wedge provides a tighter, more consistent fit, which some shooters believe improves performance.
Tools and Materials Needed
To adjust an Accu-Wedge AR15, you’ll need the following tools and materials:
- Your AR-15 rifle
- The Accu-Wedge (if not already installed)
- A small hammer or mallet (preferably nylon or rubber)
- A punch (preferably nylon or brass to avoid damaging the receiver)
- A flat surface to work on
- Optional: Gun cleaning supplies
Step-by-Step Guide to Adjusting an Accu-Wedge
Step 1: Ensuring Your Firearm is Safe
Safety is paramount. Before you begin any work on your AR-15, ensure that it is unloaded and safe. Remove the magazine, clear the chamber, and visually inspect the firearm to confirm it is free of ammunition.
Step 2: Disassembling the AR-15
You’ll need to separate the upper and lower receivers. Push out the rear takedown pin and pivot the upper receiver forward, away from the lower receiver. This will give you access to the area where the Accu-Wedge will be installed or adjusted.
Step 3: Inspecting the Existing Accu-Wedge (If Applicable)
If you already have an Accu-Wedge installed, inspect it for wear and tear. Check its position and how it fits within the lower receiver. Look for any signs of damage or deformation. If the existing Accu-Wedge is damaged, it should be replaced.
Step 4: Installing or Replacing the Accu-Wedge
If you are installing a new Accu-Wedge, place it in the lower receiver behind the rear takedown pin. The wedge should fit snugly into the space. If you are replacing an old Accu-Wedge, remove the old one first and then insert the new one in the same manner. Make sure the Accu-Wedge is properly seated before proceeding.
Step 5: Reassembling the AR-15
Pivot the upper receiver back into place, aligning the takedown pin holes. Push the rear takedown pin back into position to secure the upper and lower receivers together.
Step 6: Testing the Fit and Making Adjustments
This is the most critical step in how to adjust an Accu-Wedge AR15. Check for any remaining play between the upper and lower receivers. If there is still noticeable movement, you’ll need to make adjustments to the Accu-Wedge. This is usually done by trimming the Accu-Wedge. Remove the upper receiver again.
Step 7: Trimming the Accu-Wedge (If Necessary)
If the fit is too tight, or the upper and lower won’t close completely, the Accu-Wedge is likely too thick. Carefully trim small amounts of material from the top of the Accu-Wedge using a sharp knife or file. It’s better to trim too little than too much. After each small trim, reassemble the rifle and check the fit. Repeat this process until the upper and lower receivers fit together snugly with minimal to no play.
Step 8: Fine-Tuning the Fit
Once you have a snug fit, cycle the action of the rifle to ensure that the bolt carrier group moves freely. Check the trigger pull and ensure that it is not affected by the Accu-Wedge. If you notice any issues, further adjustments to the Accu-Wedge may be necessary.
Step 9: Final Inspection and Function Check
After making all necessary adjustments, perform a final inspection of the rifle. Ensure that all parts are properly assembled and that the rifle functions correctly. Conduct a function check to verify that the trigger, safety, and bolt catch are all operating as they should. [See also: AR-15 Functionality Tests]
Troubleshooting Common Issues
Even with careful adjustments, you might encounter some common issues when installing or adjusting an Accu-Wedge. Here are a few troubleshooting tips:
- Upper and Lower Receivers Won’t Close: This usually indicates that the Accu-Wedge is too thick. Trim small amounts of material from the top of the Accu-Wedge until the receivers close properly.
- Excessive Play Remains: If there is still significant play after installing the Accu-Wedge, it may be too thin or worn. Consider replacing it with a new Accu-Wedge.
- Difficult Takedown Pin Removal: A very tight Accu-Wedge can make it difficult to remove the takedown pin. Ensure that the Accu-Wedge is not excessively compressed, and consider trimming it slightly if necessary.
Benefits of Using an Accu-Wedge
While the benefits of an Accu-Wedge are debated among AR-15 enthusiasts, many shooters find them to be a worthwhile addition. Some potential benefits include:
- Improved Accuracy: By eliminating movement between the upper and lower receivers, the Accu-Wedge can potentially improve accuracy, especially in long-range shooting.
- Enhanced Feel: A tighter fit between the receivers can improve the overall feel of the rifle, making it more solid and stable.
- Reduced Wear and Tear: By minimizing movement, the Accu-Wedge can reduce wear and tear on the takedown pins and receiver surfaces.
Alternatives to the Accu-Wedge
If you’re not convinced that an Accu-Wedge is the right solution for your AR-15, there are other alternatives to consider. These include:
- Shim Kits: Shim kits consist of thin metal shims that can be inserted between the upper and lower receivers to eliminate play.
- Adjustable Tension Screws: Some lower receivers feature adjustable tension screws that can be used to tighten the fit between the receivers.
- Oversized Takedown Pins: Oversized takedown pins can provide a tighter fit and reduce movement.
Conclusion
Adjusting an Accu-Wedge AR15 is a relatively simple process that can improve the fit and feel of your rifle. By following the steps outlined in this guide, you can ensure a snug and reliable fit between the upper and lower receivers. Remember to prioritize safety and take your time when making adjustments. With a little patience, you can achieve a tighter, more consistent fit and potentially enhance the performance of your AR-15. The Accu-Wedge is a cost-effective solution to address receiver play, and knowing how to adjust an Accu-Wedge AR15 properly can significantly enhance your shooting experience. Whether you are a seasoned shooter or new to the AR-15 platform, understanding how to adjust an Accu-Wedge AR15 is a valuable skill. The proper adjustment of an Accu-Wedge ensures optimal performance and longevity of your firearm. Take the time to learn how to adjust an Accu-Wedge AR15 and enjoy the benefits of a more stable and accurate rifle. The importance of understanding how to adjust an Accu-Wedge AR15 cannot be overstated for maintaining the integrity of your firearm. Keep in mind that knowing how to adjust an Accu-Wedge AR15 is crucial for proper firearm maintenance. Always refer to the manufacturer’s instructions and resources on how to adjust an Accu-Wedge AR15 for the best results. Remember, taking the time to properly learn how to adjust an Accu-Wedge AR15 can make a significant difference in your shooting experience.
