MPX-SD K Conversion Service – The Ultimate Integrally Suppressed Upgrade for Your MPX

Build Time: 4–6 Weeks | Precision-Crafted | Made in the USA

✅ Why Upgrade Your MPX-K with Ronin Arms?

The SIG MPX-K is one of the most innovative PCC platforms in the world, but when you want whisper-quiet suppression with uncompromising reliability, nothing beats the Ronin Arms MPX-SD K Conversion.

This service transforms your MPX-K into a fully integrally suppressed system, engineered for professional shooters, law enforcement, and serious firearm enthusiasts who demand elite performance.

✔ Industry-Leading Suppression
✔ Flawless Cycling & Reduced Recoil
✔ Live-Fire Tested for Reliability

🔊 Experience the Ronin Arms Difference

At Ronin Arms, we don’t cut corners. Every MPX-SD K conversion is:
✔ Built by one gunsmith, one at a time
✔ Precision-machined for perfect alignment
✔ Finished with live-fire testing to ensure reliability

🛠 What’s Included in the MPX-SD K Conversion?

✔ 5.75″ Ronin Arms Ported SD Barrel

✔ Velocity Reduction Technology – Converts 115gr & 124gr ammo to subsonic speeds
✔ Eliminates the need for 147gr subsonic ammo
✔ Optimized for Accuracy & Recoil Control
✔ 18 x 1 Rear Thread Pitch for perfect fit

🔥 Why Titanium? Why Now?

Our previous aluminum model set the benchmark for SD performance—but this new titanium system raises the bar in every way. With 25% more internal volume, dramatically increased strength, and extreme heat tolerance, the Wakizashi Titanium is made to run harder, stay cooler, and last longer than anything in its class.

✔ Key Features & Advantages

✔ Military-Grade Titanium – Ultra-Strong & Feather-Light
Crafted from aerospace-grade titanium, the Wakizashi delivers maximum durability without added weight. Precision laser welding ensures absolute structural integrity under the harshest cycles of fire.

✔ Massive Service Life: 100,000–200,000+ Rounds
Built to outlive everything around it.

✔ Whisper-Quiet Suppression with Minimal Blowback
Engineered for maximum gas management and sound reduction, the Wakizashi delivers true SD performance—smooth recoil, reduced signature, and quiet operation that exceeds industry expectations.

✔ Designed for Extreme Reliability
Every contour and internal geometry is optimized for consistent results under sustained fire. The combination of titanium strength and expanded internal volume results in cooler temps, cleaner cycling, and superior accuracy retention.

✔ Precision Receiver Machining

✔ Ensures flawless barrel and suppressor alignment
✔ Guarantees consistent accuracy and smooth cycling

✔ Expert Barrel Installation

✔ Professionally fitted for durability and reliability
✔ Tested under live-fire conditions before shipping

⚠ Compatibility – Is Your MPX Ready for This Upgrade?

✔ Compatible with SIG MPX Gen1, Gen2, and Gen3 models
❌ NOT compatible with monolithic upper receivers (including Copperhead Monolithic)

🔧 Recommended Handguard Upgrade – Midwest Industries 8″ Handguard

✔ Lightweight & Rugged Construction
✔ M-LOK Compatible for accessories
✔ Optimized Fit for MPX-SD K Builds

Important: If adding accessories, screw length may need modification for proper fitment.

📦 How to Send Your MPX for Conversion

✔ Include Printed Order Receipt – Orders without documentation will be returned
✔ Ship ONLY the barreled upper receiver – Extra parts incur $50 handling fee (not guaranteed to return)
✔ We will process a Form 3 transfer for your suppressor
✔ Complete your Form 4 at your FFL

🔊 Suppressor Maintenance & Warranty

✔ Non-Serviceable Design – Rated for 400,000–500,000 rounds
✔ Ultrasonic Cleaner Compatible for external care
✔ Contact Ronin Arms for authorized service when needed
❌ Do NOT attempt disassembly – Tampering voids warranty

💯 Ronin Arms Warranty

✔ Covers defects in materials & craftsmanship
✔ Repair or replacement at Ronin Arms’ discretion
❌ Does not cover misuse, neglect, or unauthorized modifications

⚙ Installation & Removal Guidelines

🚨 DO NOT FIRE WITHOUT THE SUPPRESSOR ATTACHED – Catastrophic damage may occur
✔ Hand-tighten only – Do NOT over-torque
✔ Allow suppressor to cool before removal

⏳ Build Time & ATF Notes

✔ Turnaround Time: 4–6 weeks (quality takes time)
✔ ATF Form 3 Transfer Required – Wait times are beyond our control
⚠ Status calls will NOT speed up the process

🔐 Refund & Cancellation Policy

⚠️ All Sales Are Final

Because every Ronin Arms product — from full builds to suppressors, parts, and conversions — is hand-built or custom-fit to order:

• All sales are final on every item and service we offer.

• No cancellations, returns, or refunds once an order is placed.

• NFA items, custom builds, and conversion services are non-refundable.

We operate on a One Gun. One Gunsmith.
Accept No Imitations.

Each order is scheduled, parts allocated, and work begins immediately to meet your timeline. Please review your order carefully before checkout. If you have any questions or need clarification, reach out before purchasing — we’re happy to help ensure your order is exactly what you want.

✅ Why Ronin Arms MPX-SD K?

✔ True Integral Suppression – Whisper-quiet performance
✔ Extended Suppressor Life – 400K–500K rounds
✔ Premium Titanium Construction – Lightweight, durable, and heat-resistant
✔ One Gun, One Gunsmith – No shortcuts, no compromises

🔥 Upgrade Your MPX-K Today!

Don’t settle for factory performance—unlock elite suppression, precision, and control with Ronin Arms MPX-SD K Conversion Service.

🚀 Experience the future of integrally suppressed firearms.
👉 Order your conversion now and join the Ronin Family!

📌 Tag your build: #RoninArms #RoninFamily