AP5-SD K Integrally Suppressed Conversion by Ronin Arms

Build Time: 3–5 Months | Precision-Crafted | Made in the USA

✅ Why Upgrade Your AP5-SD with Ronin Arms?

If you own a Century Arms AP5-SD , you already have one of the most compact and reliable roller-delayed firearms on the market, modeled after the legendary MP5-SD. But what if you could push its performance to the ultimate level—achieving whisper-quiet suppression, perfect cycling, and reinforced durability that outlasts the competition?

That’s exactly what you get with the Ronin Arms AP5-SD K Integrally Suppressed Conversion—an elite upgrade for operators, law enforcement professionals, and serious firearm enthusiasts who demand nothing but the best.

When you choose Ronin Arms, you’re not just investing in a conversion; you’re securing:
✔ Industry-Leading Suppression Technology
✔ Expert Hand-Fitted Craftsmanship
✔ Premium Components for Maximum Longevity
✔ Rigorous Live-Fire Testing & Quality Control

❌ Models & Configurations We Do NOT Accept

To prevent delays or returns, please review the following non-eligible models and conditions:

• ❌ AP5 Standard (Full-Size) – Not compatible with this SD-K conversion

• ❌ AP5-P (K Receiver Models) – Cannot be converted into an SD platform

• ❌ Non-Century Receivers or Clone Variants – Only factory Century Arms AP5-SD  is accepted

• ❌ Damaged, Altered, or Previously Converted Guns – No builds on compromised receivers or previously modified SD setups

📌 Before shipping your firearm, confirm your exact model to avoid delays and return fees.

🔍 What Is an Integrally Suppressed AP5-SD K Conversion?

This conversion replaces your factory barrel and shroud with a precision-engineered, integrally suppressed system. Unlike thread-on suppressors, an integral system provides:
✔ Superior Sound Reduction without unnecessary length
✔ Balanced Handling & Maneuverability
✔ No Point-of-Impact Shift during removal or reattachment
✔ True SD Authenticity for collectors and professionals

Perfect for:

• Tactical Operators & Law Enforcement who need stealth performance

• Home Defense Owners seeking reliability and sound suppression

• Collectors & Suppressor Enthusiasts demanding authentic SD builds

🔥 Key Features of the Ronin Arms AP5-SD K Conversion

New for 2025 – 8” Wakizashi Titanium Suppressor

The Wakizashi Titanium suppressor is the heart of this system, delivering:
✔ Aerospace-grade Titanium Construction – Ultra-light and incredibly strong
✔ Long Service Life – Estimated 500,000 rounds under standard use
✔ Easy Cleaning – Fully ultrasonic cleaner compatible
✔ Minimal First-Round Pop – Engineered for consistent suppression
✔ Perfect Balance – Eliminates excessive front-end weight

Ronin Arms 5.75” Ported SD Barrel

✔ Optimized gas regulation for subsonic performance
✔ Runs reliably with 115gr, 124gr ammo
✔ Installed and head-spaced by Ronin Arms experts

Complete SD Component Upgrade Includes:

• SD Cocking Tube & Reinforcement Support for smooth cycling

• 120° Locking Piece for reduced recoil and superior function

• High-Temp Sealing Ring for gas retention and minimal carbon fouling

• TIG-Welded Barrel Shroud for unmatched strength

🛠 How the Conversion Process Works

1️⃣ Disassembly – We remove the factory barrel and SD components
2️⃣ Install Ronin Arms Barrel & Suppressor System – Precision fit for perfect cycling and sound reduction
3️⃣ Cocking Tube & Shroud Integration – Hand-fitted for factory-level alignment
4️⃣ TIG Welding & Structural Reinforcement – For maximum longevity
5️⃣ HK Black Factory Finish – A clean, corrosion-resistant coating
6️⃣ Live-Fire Testing & QC – Each build is thoroughly tested before shipping

Technical Specifications (Copy-Friendly)

• Suppressor: 8” Wakizashi Titanium (Integrally Suppressed)

• Barrel Length: 5.75” Ronin Arms Ported Barrel

• Locking Piece: 120° HK Spec

• Estimated Service Life: 500,000 rounds

• Maintenance: Ultrasonic cleaner compatible Suppressor

• Finish: HK Factory Black, corrosion-resistant coating

📦 Shipping & Transfer Information

✔ Ship ONLY: Barreled receiver & bolt carrier group
✔ Include: Printed order receipt (required)
✔ Suppressor Transfer: Processed via Form 3 to your FFL/SOT
✔ Original Barrel Returned: Included with your converted firearm

🚫 Do NOT send extra parts (stocks, trigger packs, optics) – A $50 handling fee applies, and these items are not guaranteed to be returned

⏳ Build Time & ATF Notes

• Estimated Build Time: 3–5 months (quality takes time)

• ATF Form 3 Transfer: Required for suppressor (we do not control wait times)
  ⚠ Calling for status updates will NOT speed up the process

🚫 Refund & Cancellation Policy

• No refunds after the suppressor is Form 3’d

• All cancellations incur a 20% restocking fee

✅ The Ronin Arms Advantage

✔ Specialized in SD Conversions – MP5, AP5, and advanced integrally suppressed platforms
✔ Crafted by Hand – No mass production shortcuts
✔ Premium Titanium Suppressors for ultimate performance
✔ Rigorous Live-Fire Testing for reliability under real conditions

🔥 Why This Matters for You

✔ Ultra-Quiet Shooting – Industry-leading sound suppression
✔ Compact Design – Perfect for CQB or discreet use
✔ Reduced Recoil – Smooth, controllable shooting
✔ Enhanced Value – Adds significant resale appeal
✔ Built to Last – Reinforced welds and premium components

✅ Order Your AP5-SD K Conversion Now

Ronin Arms conversions are in high demand, and we limit production to maintain quality standards. Don’t miss your chance to own the most advanced AP5-SD K integrally suppressed system on the market.

🚀 Experience elite suppression.
👉 Click “Add to Cart” now and secure your build today!

📩 Questions? Contact info@roninarmsaz.com
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