RA-MNDRL-HK53 | Receiver Alignment Mandrel

Fits HK53, HK33, and HK93 receivers

Building the perfect HK53 receiver can be a daunting task. Misaligned BCG rails, excessive heat distortion, and poorly shaped receiver flats often lead to a myriad of issues, including bolt carrier group binding and failure to pass the critical BCG Drop Test.

RA-MNDRL-HK53 | Receiver Alignment Mandrel

The RA-MNDRL-HK53 | Receiver Alignment Mandrel is the ultimate solution for perfecting your HK53 receiver build.

This tool ensures that your receiver builds have HK factory-spec rail spacing and alignment every single time. Eliminating bolt carrier drag and binding, and ensuring smooth operation, reliable cycling and optimal performance of your HK weapon system.

Precision Craftsmanship

Crafted from premium 4140 Steel Alloy and solid 7075 Aircraft-Grade Aluminum, the RA-MNDRL is built to withstand the extreme pressures generated by a 20-ton shop press. Its CNC Precision 5-Axis Machining guarantees unparalleled accuracy and durability, giving you a tool that lasts a lifetime.

Why Choose The RA-MNDRL-HK53?

With the RA-MNDRL-HK53, you can:

• Achieve HK Factory-Perfect BCG Rails and Receiver Dimensions: Eliminate the common issues of misalignment and spacing errors.
• Ensure Smooth and Reliable Cycling: Enhance the reliability and overall function of your weapon system.
• Save Time and Reduce Frustration: Focus on building rather than troubleshooting.

Get Your RA-MNDRL-HK53 Today!

Take your HK53 builds to the next level with the RA-MNDRL-HK53 | Receiver Alignment Mandrel. Experience the satisfaction of creating perfectly aligned, factory-spec builds that perform flawlessly every time.

See the RA-MNDRL in Action!

To truly appreciate the effectiveness and ease of use of the RA-MNDRL | Receiver Alignment Mandrel, Click here to watch our demonstration videos. 

Achieve HK Factory-Level results with the RA-MNDRL-HK53. Because precision matters.

Note: Requires the use of a (12-TON Rated minimum) Shop Press