Magpul's MBUS (Magpul Backup Sight) Pro sights are popular choices for AR-15 and other firearms, offering robust, reliable backup iron sights. However, adjusting these sights can be tricky without the right tool. This guide delves into the Magpul MBUS Pro Sight Tool, explaining its use, benefits, and alternatives. We'll cover everything from proper adjustment techniques to troubleshooting common issues. Understanding this tool is crucial for anyone who owns and utilizes Magpul MBUS Pro sights.
Understanding the Magpul MBUS Pro Sight System
Before diving into the tool itself, let's understand the sights. The MBUS Pro sights are known for their:
- Durability: Constructed from reinforced polymer, they can withstand significant abuse.
- Low Profile: They fold down flat when not in use, preventing snags and maintaining a streamlined profile.
- Adjustability: Windage and elevation adjustments allow for precise zeroing. This is where the tool comes in.
- Ambidextrous Operation: Both the front and rear sights can be adjusted from either side.
The Magpul MBUS Pro Sight Tool: Functionality and Benefits
The Magpul MBUS Pro Sight Tool is specifically designed to simplify the adjustment process. Unlike using improvised tools (which can damage the sights), this dedicated tool ensures accurate and safe adjustments. The benefits include:
- Precise Adjustment: The tool’s design prevents accidental slips, ensuring precise windage and elevation changes.
- Protection of Sights: It eliminates the risk of scratching or damaging the sight adjustments with other tools.
- Ease of Use: The tool makes adjustments significantly faster and easier compared to improvised methods.
- Ergonomic Design: The tool is typically made from durable materials and shaped for comfortable and secure handling.
Here's a breakdown of the tool's design: The tool often features two distinct ends, one for windage adjustments and the other for elevation adjustments. Each end is specifically sized and shaped to precisely fit the adjustment knobs on the MBUS Pro sights.
How to Use the Magpul MBUS Pro Sight Tool
Adjusting your Magpul MBUS Pro sights using the dedicated tool is a straightforward process:
- Identify the Adjustment Knobs: Locate the windage and elevation adjustment knobs on the rear sight.
- Select the Correct Tool End: Choose the appropriate end of the tool for the desired adjustment (windage or elevation).
- Align the Tool: Carefully align the tool with the corresponding adjustment knob.
- Apply Gentle Pressure: Gently turn the knob using the tool. Avoid excessive force.
- Observe the Adjustments: Make small, incremental adjustments, verifying the changes on the target.
- Repeat as Needed: Continue adjusting until the sights are properly zeroed.
Troubleshooting Common Issues
While using the tool is generally straightforward, some issues might arise:
- Tool Doesn't Fit: Ensure you are using the correct tool for your MBUS Pro sights.
- Sights Aren't Moving: Check if the sights are properly locked or if there is any debris preventing movement.
- Adjustments Are Too Large: Apply less pressure to make smaller adjustments.
Alternatives to the Official Magpul Tool
While the official Magpul MBUS Pro Sight Tool is recommended, several alternatives exist:
- Small Flathead Screwdriver: This can be used in a pinch but may damage the sights if not handled carefully.
- Multi-tool: Certain multi-tools may have the appropriate size and shape bits. However, ensure the bit is the correct size and will not slip, potentially damaging the adjustment screw.
Caution: Using improvised tools greatly increases the risk of damaging your sights.
Conclusion: The Importance of the Right Tool
The Magpul MBUS Pro Sight Tool may seem like a small accessory, but it is an essential tool for anyone who wants to ensure precise adjustments to their sights. The investment in the dedicated tool guarantees accurate adjustments, protects the sights, and saves time and frustration compared to relying on makeshift solutions. The ease of use and the prevention of potential damage to the sights significantly outweigh the small cost of the tool. Remember to always prioritize safety and proper technique when zeroing your sights.