MPX-SD K Conversion Service

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1 in stock

During checkout, please ensure that you select an FFL (Federal Firearms Licensee) that permits suppressor transfers (SOT). Failure to do so may result in an additional $25 processing fee for us to arrange an eligible FFL on your behalf.
Military and LEO, please contact us to claim your 5% discount.

Elevate Your MPX-K with Ronin Arms’ MPX-SD K Conversion Service

Are you seeking to elevate your MPX-K firearm to unprecedented levels of performance and versatility? Look no further than Ronin Arms’ MPX-SD K Conversion Service. This all-inclusive service is tailored for MPX-K enthusiasts who crave superior shooting experiences and enhanced capabilities. Our MPX-SD K Conversion Service transforms your firearm into an integrally suppressed marvel, delivering precision, quietness, and enhanced functionality.

Service Components

Transformative Features

The MPX-SD K Conversion Service includes essential components designed to elevate your MPX to new heights. Here’s what’s included in this exceptional service package:

  • 4.75″ Ronin Arms Ported SD Barrel: This custom barrel is meticulously engineered to enhance performance, ensuring that each shot is delivered with precision and reduced noise. Our unique porting system brings standard 115gr 9mm ammo to subsonic speeds before the round leaves the barrel, making this system extremely quiet.
  • 8″ SD Suppressor: Crafted with the finest materials, this suppressor integrates seamlessly with the ported barrel to provide a quiet and efficient shooting experience. The suppressor is designed to minimize noise and muzzle flash, ensuring that your shooting is discreet and effective. Weight 13.3oz
  • Barrel Installation Service: Our expert handles the installation with precision, ensuring that your new barrel is fitted perfectly and operates flawlessly.
  • Precision Receiver Machining: We machine your receiver to exacting standards, guaranteeing optimal compatibility and performance. This step ensures that all components work together seamlessly, providing a superior shooting experience.
  • Ammo: Our SD systems are designed to shoot full-power 115gr and 124gr ammo. The porting in the barrel, combined with the suppressor technology, reduces the velocity of these rounds to subsonic levels before they leave the barrel. There’s no need for expensive 147gr subsonic ammo.

Service Details

Exclusivity and Compatibility

This service is exclusively available for MPX owners. While we do not currently offer full MPX-SD K builds (coming soon), this service allows MPX owners to upgrade their firearms for enhanced functionality. Key details include:

  • Compatibility: This service is available for both Gen1 and Gen2 MPX models, excluding those with monolithic upper receivers.
  • Required Upgrade: To ensure the best performance and compatibility with the suppressor, we recommend upgrading to a Midwest Industries handguard.

Crucial Instructions

Seamless Service Process

To facilitate a seamless service experience, please adhere to the following instructions:

  • Include Order Receipt: It is essential to include a copy of your order receipt inside the package along with the upper receiver. Packages received without an order receipt will be returned to the sender.
  • Exclude Additional Parts: Ensure that no additional parts or accessories are included in the package. Including extraneous parts will result in an additional charge of $50, and there is no guarantee of their return.
  • Shipping Instructions: Upon completion of your order, we will provide detailed shipping instructions to ensure a smooth process. We only require your barreled upper receiver.

Safety and Warranty Assurance

Warranty Information

At Ronin Arms, we prioritize safety and quality above all else. Rest assured that our suppressor is meticulously crafted to meet or exceed all manufacturing specifications, guaranteeing optimal performance and reliability. However, please be advised that the suppressor is non-serviceable. It is imperative to adhere to all provided instructions regarding installation and usage to ensure safe operation and longevity.

Ronin Arms LLC guarantees to the retail customer that this suppressor is devoid of any defects in workmanship and/or materials, and that it meets or surpasses all manufacturing specifications. This warranty solely covers repair or replacement at our discretion for this suppressor. DO NOT SHIP ANY SUPPRESSORS back to us. Contact us before any return is attempted or shipped! To follow legal requirements, you must not ship your suppressor to us until we have reviewed your situation. A SERIAL NUMBER CANNOT BE TRANSFERRED TO A NEW SUPPRESSOR OR TUBE. There are no other warranties, whether expressed or implied. There is no warranty for the merchantability or fitness of this suppressor for specific purposes. Specifications and/or designs may be subject to change without prior notice. This warranty does not encompass careless handling or use, negligence; improper handling or use, attempted, partial or complete disassembly, abuse; modifications; improper installation; ordinary wear resulting from normal use; use of improper ammunition, or any failure to adhere to instructions. Ronin Arms LLC shall not be held liable in any manner for any damages, personal injury or death, economic loss, or property damage. Suppressor is non-serviceable.

Pre-Usage Precautions

Before utilizing the suppressor, always verify that the firearm is unloaded and that the safety is engaged. Familiarize yourself with all provided instructions to mitigate the risk of accidents or injuries.

Installation and Removal Protocol

Safety First

  • Never Install or Remove from a Loaded Firearm: Ensure the firearm is unloaded and the safety is engaged before attempting to install or remove the suppressor.
  • Proper Fitment and Alignment: Conduct a thorough visual inspection to confirm the proper fitment and alignment of the suppressor with your firearm.

Installation Procedure

  1. Inspect the Threads: Verify that the muzzle threads and caliber correspond to the suppressor specifications.
  2. Thread the Suppressor: Carefully thread the suppressor onto the barrel’s rear threads. Hand tighten—do not over-tighten.
  3. Check Alignment: From the rear of the firearm, visually inspect the fitment of the suppressor to ensure it does not obstruct the bore. Never inspect bore alignment from the front of the firearm.

Removal Procedure

  1. Cool Down: Allow the suppressor to cool to room temperature before attempting removal.
  2. Unscrew by Hand: Gently unscrew the suppressor by hand. Use tools only if necessary and with caution to avoid damaging the threads.

Experience the Pinnacle of MPX Performance

Experience the pinnacle of MPX performance with Ronin Arms’ MPX-SD K Conversion Service. With our expertise and precision-engineered components, you can unlock the full potential of your MPX and enjoy unparalleled shooting experiences. Upgrade your MPX today and embark on a journey of superior performance and versatility.

Turnaround Time

Understanding the excitement of upgrading your MPX and the anticipation of experiencing the enhanced performance, Ronin Arms is dedicated to providing a swift and efficient service. The typical turnaround time for the MPX-SD K Service is approximately 3-4 weeks. This time frame allows meticulous installation and calibration of each component to ensure your firearm performs at its best. Please note that the turnaround time is dependent on parts availability

Why Choose Ronin Arms?

Expertise and Precision

At Ronin Arms, we bring years of experience and expertise to every project. Our team  is dedicated to pushing the boundaries of firearm performance and innovation. With our MPX-SD K Service, you can trust that your firearm is in capable hands.

Superior Components

We use only the finest materials and components in our conversion service, ensuring that each element is designed to enhance performance and reliability. From our custom ported barrel to our precision-engineered suppressor, every part of your upgraded MPX is crafted for excellence.

Customer Satisfaction

Your satisfaction is our top priority. We are committed to providing exceptional service and support throughout the conversion process. Our team is always available to answer your questions and address any concerns, ensuring that you have a positive experience from start to finish.

Innovation and Performance

Our MPX-SD K Conversion Service is the result of continuous innovation and a relentless pursuit of performance. We are dedicated to advancing firearm technology and delivering products that meet the highest standards of quality and precision.

Community and Support

Join a community of MPX enthusiasts who trust Ronin Arms for their firearm upgrades. Share your experiences, tips, and feedback with fellow shooters, and stay connected with us through our social media channels. Your journey with Ronin Arms doesn’t end with your conversion—it’s just the beginning.

Contact Us

For any inquiries or further assistance, please contact us at We look forward to helping you elevate your MPX to new heights with our MPX-SD K Conversion Service.

Thank you for choosing Ronin Arms. Your trust in our craftsmanship and commitment to excellence drives us to deliver the best in firearm innovation. Enjoy your upgraded MPX and share your experiences with us by tagging us in your posts!



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