SIG MCX RATTLER LT SBR 5.56 NATO

MSRP: $2,499.00
$2,499.00
Out of Stock
SKU
SIG RMCX-556N-7B-LT-SBR

Optional Add-Ons

Why do I need this? The Single Shot Trust is a simplified gun trust drafted by attorneys to streamline the process of owning an NFA item.
Why do I need this? A tax stamp is a required tax payment for firearms under the National Firearms Act, such as silencers and SBRs.

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The SIG SAUER MCX Rattler LT SBR in 5.56 NATO takes the battle-proven MCX platform and shrinks it down into a fast-handling, suppressor-ready powerhouse. With a 7.75" cold hammer-forged barrel and short-stroke gas piston system, it delivers rock-solid reliability and smooth recoil impulse—whether you’re running it loud or suppressed. This Rattler brings ambi controls, a modular folding stock, and M-LOK compatibility to the table, making it easy to tailor your setup for any mission. It’s light, it’s tough, and it punches above its weight—just how a 5.56 SBR should.

 

FEATURES AND BENEFITS OF THE MCX RATTLER-LT:

  • Compact and Capable: 7.75" barrel offers tight handling with dependable 5.56 NATO performance.
  • Runs Smooth, Suppressed or Not: Short-stroke piston system is built for reliability with reduced recoil.
  • Fully Ambidextrous Layout: Controls on both sides keep things intuitive for all shooters.
  • Customization-Friendly: M-LOK handguard and folding stock give you plenty of room to make it yours.
  • Suppression-Ready: Tuned for running cans without sacrificing performance.

 

TECHNICAL SPECIFICATIONS:

  • Caliber: 5.56 Nato
  • Barrel Length: 7.75"
  • Mags: 30-Rd Polymer Mag
  • Trigger: SIG Flatblade Match
  • Twist: 1:7 in
  • Overall Length: 25.9"
  • Weight: 6.2 lb

WHAT'S IN THE BOX:

  • Sig Sauer MCX RATTLER LT SBR 5.56 NATO
  • (1) 30 Round Magazine
  • Owners Manual

HOW TO BUY THE SIG MCX RATTLER-LT WITH SILENCER SHOP:

  1. Add the MCX RATTLER to your cart. Make sure to include a tax stamp for each item and a Single Shot Trust if applicable. The Single Shot Trust makes it easy to add friends and family as additional users of the suppressor.
  2. Head to your selected Powered By Silencer Shop dealer with a kiosk to complete your demographic and fingerprint scan in just five minutes. Snap a selfie and upload it online within your customer portal with the Silencer Shop app.
  3. Silencer Shop will email an electronic document to you. Please review and digitally sign the file from your computer or mobile device.
  4. Set up your ATF eForms account at eforms.atf.gov. Make sure your email, name, and address match your Silencer Shop profile information exactly.
  5. You'll receive an email from Silencer Shop that says "Ready to Certify" and includes the phone number of your local Powered by Silencer Shop dealer. Set up a time to certify with your dealer and submit the form to the ATF for processing. 

More Information
Finish Black Anodized
Dimensions 1x1x1

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