The Magpul MBUS (Magpul Backup Sight) is a popular choice for both civilian and military shooters, prized for its robust construction and ease of use. However, properly adjusting the front sight is crucial for accurate shooting. This guide will walk you through the process of adjusting your Magpul MBUS front sight, covering everything from identifying the correct tool to troubleshooting common issues.
Identifying Your Magpul MBUS Front Sight
Before you begin, it's important to identify the specific model of your Magpul MBUS front sight. While the adjustment process is similar across models, slight variations may exist. Knowing your specific model ensures you're using the correct techniques and tools. Common models include the MBUS Pro and the standard MBUS.
The Necessary Tool: The Magpul Front Sight Adjustment Tool
Magpul doesn't include a dedicated adjustment tool with the sights themselves; you'll need to purchase this separately. This specialized tool is essential for precise adjustments, preventing damage to the sight or accidental misalignment. Using an improper tool can lead to stripping the adjustment screw or causing other damage. Ensure you're using the correct tool designed specifically for Magpul MBUS front sights.
Adjusting Your Magpul MBUS Front Sight: A Step-by-Step Guide
The adjustment process typically involves a small, Allen-style wrench (often a 1/16" or 2mm). Always ensure the tool fits snugly to prevent slippage and damage. The process generally follows these steps:
1. Secure Your Weapon:
Before making any adjustments, ensure your firearm is unloaded and safely secured. Proper firearm handling is paramount.
2. Locate the Adjustment Screw:
The adjustment screw is usually located on the side of the front sight base. Carefully examine your sight to locate it.
3. Using the Adjustment Tool:
Insert the correct size Allen wrench into the adjustment screw. Turn the screw clockwise to move the point of impact (POI) to the right, and counterclockwise to move it to the left. Small adjustments are recommended—make only minimal turns at a time.
4. Test and Repeat:
After each adjustment, test fire your weapon at a known distance to assess the change in POI. Repeat steps 3 and 4 until the POI is correctly aligned with your point of aim (POA).
Troubleshooting Common Issues
While adjusting your Magpul MBUS front sight is generally straightforward, you may encounter some issues:
- Stripped Adjustment Screw: This often occurs due to using an incorrect tool or applying excessive force. If this happens, you may need to replace the front sight.
- Inaccurate Adjustments: This could be due to an improperly fitted tool, environmental conditions (like wind), or user error. Careful, incremental adjustments are vital.
- Sight Still Off After Adjustments: If you've made significant adjustments and the POI is still misaligned, there may be a problem with your rear sight or zeroing process. Check your rear sight alignment first before assuming there is a problem with the front sight.
Maintaining Your Magpul MBUS Front Sight
Regular cleaning and inspection of your sights are important for maintaining accuracy and extending their lifespan. Use a soft cloth and appropriate cleaning solvent to remove dirt and debris. Avoid using harsh chemicals or abrasive materials.
Conclusion
Proper adjustment of your Magpul MBUS front sight is crucial for accurate shooting. By following this guide and using the correct tools, you can ensure your sights are properly aligned, providing you with the confidence and precision you need on the range or in the field. Remember, safety always comes first. Handle your firearm responsibly, and always ensure it's unloaded before making any adjustments.
