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(K Receiver) Ronin Arms™ RA5K-SD
$7,500.00
1 in stock
“In Stock” does not mean ready to ship. It means we have the required components available and can allocate them to your build and place your RA5K-SD™ into our active 6–9 month build queue.
Your RA5K-SD™ is built from receiver flats up — hand built, fit, finished, and tested one at a time by one gunsmith.
These are not pre-built firearms sitting on a shelf waiting to ship. Each RA5K-SD™ is individually built for its customer and must complete our full manufacturing, inspection, testing, and transfer process before leaving our shop.
RONIN ARMS™ DOES NOT COMPLETE YOUR ATF FORM 4473 OR YOUR LOCAL CUSTOMER TRANSFER.
Your completed firearm and suppressor will be transferred through the appropriate licensed dealer(s). Your local FFL/SOT will handle the Form 4473, background check, and any other customer-facing transfer requirements applicable under current federal, state, and local law.
Ronin Arms™ handles the required manufacturer/dealer transfer paperwork necessary to send the regulated items to the appropriate FFL/SOT. Your local dealer handles the final transfer to you.
Please contact your selected FFL/SOT with questions regarding the Form 4473, background check, identification requirements, waiting periods, or any additional requirements that may apply to your individual transfer.
Build and transfer timing can vary depending on:
🔹 Current build queue and order volume
🔹 Component availability
🔹 Individual fitting, finishing, and testing
🔹 Receipt of your dealer’s required FFL/SOT information
🔹 Applicable ATF transfer processing and approval timelines
🔹 Scheduled shipping days
Every RA5K-SD™ is individually inspected, tested, and verified to Ronin Arms™ standards before shipment.
As a boutique firearms manufacturer, we intentionally limit the number of builds placed into production. This allows us to maintain the level of craftsmanship and attention to detail that goes into every Ronin Arms™ platform.
One build. One gunsmith. Built the way it should be.
Our goal is simple: build it right the first time, not build it fast.
Thank you for supporting American manufacturing and the Ronin Arms™ family.
The Ronin Arms™ RA5KSD is not just another clone or conversion—this is a true integrally suppressed K platform, engineered from the ground up for elite suppression, flawless reliability, and uncompromising performance.
Every RA5KSD is handcrafted from start to finish under our core philosophy:
“Accept No Imitations. One Gun. One Gunsmith.”™
The result? Precision-fit components, smooth cycling, and a purpose-built system that performs exactly how it was designed to.
✔ No shortcuts
✔ No compromises
✔ No mass production
🔥 Limited production. Reserve your build today before slots fill up! 🔥
✔ True Integral Suppression – Barrel and suppressor engineered together as a complete system
✔ Titanium Suppressor Technology – Lightweight, ultra-strong, and built for extreme use
✔ Built From Receiver Flats Up – Not assembled, but fully built from the ground up
✔ Hand Built, Fit & Tested – Every system is individually crafted and verified
✔ Purpose-Built K Platform – Designed specifically for SD performance
✔ Built from receiver flats up
✔ Precision-formed, welded, and aligned
✔ Engineered for durability, reliability, and consistent performance
✔ Engineered specifically for SD performance
✔ Precision porting allows 115gr and 124gr ammunition to run subsonic
✔ Designed for optimal gas balance, recoil control, and accuracy
✔ Grade 5 Titanium Construction (6AL-4V)
✔ Approx. 8” length | Approx. 9.7 oz | 1.65” diameter
✔ Full-auto rated and built for extreme round counts
✔ Designed to run 40–50K rounds before cleaning is needed
✔ Suppression improves as carbon builds within the system
✔ Compatible with ultrasonic cleaners for suppressor maintenance
✔ Optimized gas flow for reduced backpressure
✔ Delivers a fast, tight, controlled suppression tone
✔ Tuned for smooth, consistent cycling
✔ Balanced for SD system performance
✔ Built to maintain reliability across high round counts
✔ Integrated optics mounting solution
✔ Professional-grade finish for durability and corrosion resistance
✔ Precision-fit components throughout the entire system
✔ Built from receiver flats up
✔ Hand built, fit, and tested as a complete system
✔ TIG welded for maximum durability
✔ Fully aligned and headspaced for performance
✔ Live-fire tested before leaving our shop
Every RA5K-SD is built by one gunsmith from start to finish.
✔ FFL Required – Suppressor requires SOT transfer
✔ NFA Compliance – ATF Form 4 completed through your FFL
✔ Build Time: 6–9 months
⚠️ All Sales Are Final
Because every Ronin Arms™ product is built to order:
NFA items, full builds, and conversion services are non-refundable.
Each order is scheduled, parts are allocated, and work begins immediately.
✔ Enthusiasts who demand true SD performance
✔ Professionals who rely on consistency and reliability
✔ Shooters who want a purpose-built, integrally suppressed system
✔ 40–50K rounds before cleaning is typically required
✔ System becomes quieter as carbon builds
✔ Ultrasonic cleaner compatible for external care
❌ Do NOT attempt disassembly – This voids warranty
When you invest in an RA5K-SD, you’re not just buying a firearm—
You’re investing in a system built with precision, purpose, and accountability.
“Accept No Imitations. One Gun. One Gunsmith.”™
| Suppressor | 8" |
|---|---|
| Barrel | 5.75 |
| Overall length | 21" |
| Suppressor Diameter | 1.65” |
| Suppressor weight | 9.7 oz |
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