MPX-SD Full-Size Conversion Service – The Ultimate Suppressed Upgrade for Your MPX
Build Time: 4–6 Weeks | Precision-Crafted | Made in the USA
✅ Why Upgrade Your MPX with Ronin Arms?
The SIG MPX is an exceptional platform, but when you demand elite suppression, flawless reliability, and enhanced handling, nothing compares to the Ronin Arms MPX-SD Full-Size Conversion.
Our conversion transforms your MPX into a fully integrally suppressed powerhouse, delivering industry-leading noise reduction, reduced recoil, and seamless cycling. Engineered for law enforcement, tactical operators, and serious enthusiasts, this upgrade brings uncompromising performance to your MPX.
✔ Ultra-Quiet Operation
✔ Titanium Suppressor Technology for Durability
✔ Exclusive Ronin Arms Engineering
✔ Handcrafted, Live-Fire Tested Builds
🔊 Experience the Ronin Arms Difference
At Ronin Arms, every conversion follows our “One Gun, One Gunsmith” philosophy—ensuring:
✔ Precision Machining for perfect fit and alignment
✔ QC & Live-Fire Testing before shipping
🛠 What’s Included in the MPX-SD Full-Size Conversion?
✔ 6.75″ Ronin Arms Ported SD Barrel
✔ Velocity Reduction System – Drops 115gr & 124gr 9mm ammo to subsonic speeds
✔ Eliminates the need for 147gr subsonic ammo
✔ Engineered for Accuracy & Smooth Cycling
✔ Precision-fitted for optimal suppressor alignment
✔ 12″ Katana Titanium SD Suppressor – Fully Integrated & Ultrasonic Compatible
✔ Aerospace-grade Titanium Construction – Lightweight and built for extreme durability
✔ Extended Service Life – Rated for 400,000–500,000 rounds under normal conditions
✔ Low Maintenance Design – internal cleaning care with ultrasonic cleaning
✔ Elite-Level Noise Suppression – Whisper-quiet with minimal blowback
✔ Optimized for Reliability – Handles extreme round counts without compromise
✔ Precision Receiver Machining & Installation
✔ Guarantees perfect suppressor alignment for consistent accuracy
⚠ Compatibility – Is Your MPX Ready for This Upgrade?
✔ Compatible with SIG MPX Gen1, Gen2, and Gen3 models
❌ NOT compatible with Copperhead or monolithic upper receivers
🔧 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 your barreled upper receiver – Extra parts incur a $50 handling fee (not guaranteed for return)
✔ We will process a Form 3 transfer for the suppressor
✔ Complete your Form 4 at your local FFL
🔊 Suppressor Maintenance & Warranty
✔ Non-Serviceable Design – Rated for 400,000–500,000 rounds
✔ Ultrasonic Cleaner Compatible for external cleaning
✔ Contact us for authorized rebuild service if ever needed
❌ Do NOT attempt disassembly – Doing so voids the warranty
💯 Ronin Arms Warranty
✔ Covers defects in materials & craftsmanship
✔ Repair or replacement at our discretion
❌ Not covered for misuse, neglect, or unauthorized modification
⚙ Installation & Usage Guidelines
🚨 NEVER FIRE WITHOUT THE SUPPRESSOR ATTACHED – Catastrophic damage may occur
✔ Hand-tighten only – Do NOT over-torque
✔ Allow the suppressor to cool before removal
⏳ Build Time & ATF Transfer Details
✔ Estimated Build Time: 4–6 weeks
✔ ATF Form 3 Transfer: Required for suppressor delivery
⚠ We do NOT control ATF wait times—please be patient
🔐 Refund & Cancellation Policy
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No refunds once suppressor Form 3 transfer is initiated
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All cancellations incur a 20% restocking fee
✅ Why Ronin Arms MPX-SD Conversion?
✔ True Integral Suppression – Whisper-quiet shooting experience
✔ Unmatched Durability – Katana Titanium Suppressor rated for 400K–500K rounds
✔ Professional Engineering & Hand-Fitted Components
✔ Live-Fire Tested for Performance
🔥 Upgrade Your MPX Today!
Stop settling for a basic PCC. Experience world-class suppression, accuracy, and reliability with Ronin Arms’ MPX-SD Full-Size Conversion.
🚀 Experience precision. Experience Ronin.
👉 Order your MPX-SD conversion now and join the Ronin Family!
📩 Questions? Email info@roninarmsaz.com
📌 Share your build: #RoninArms #RoninFamily
David G. –
Hands down the quietest gun I own. Build quality is excellent, accuracy and performance are excellent. Another great feature is the fact that you don’t need subsonic ammo. Been using nothing but 115 grain 9mm and the gun runs extremely well no hiccups at all. I use suppressors on almost all my guns from 22cal up to 30cal including 300 Blkout, but this one is next level.