Sig MCX Rattler Canebrake, .300 AAC Blackout, 5.5″ Barrel Sig Sauer

Original price was: $2,879.99.Current price is: $2,303.99.

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Sig MCX Rattler Canebrake

Sig MCX Rattler Canebrake, .300 AAC Blackout, 5.5″ Barrel Sig Sauer

Original price was: $2,879.99.Current price is: $2,303.99.

SKU: 798681598724 Category: Tag:
The MCX Rattler Canebrake is the newest addition to the MCX family. Created for those that desire the MCX as a suppressed system, and eliminates the need to purchase additional components to do so. The Rattler Canebrake comes with a factory installed inert training device, making it operable right out of the box while NFA paperwork and waiting periods are completed, and then is easily convertible to run suppressed.

The MCX Rattler Canebrake comes as a suppressor ready platform with an SD handguard and inert training device that mimics the size and weight of the SIGSRD762 suppressor and assure all muzzle flash is past the shooters hand when reaching out on the handguard during operation without a functional suppressor installed. With the MCX Rattler Canebrake there’s no need for the purchase of a shorter barrel kit and SD Handguard to have a suppressed MCX system, simply unthread the inert training device, install your suppressor, and select the appropriate gas setting for your ammunition.

Additional features of the MCX Rattler Canebrake include a 2-stage flat-blade match trigger, Cerakote E190 finished upper and lower, a folding coyote-tan PCB, and comes with one 30-round polymer 300blk Magpul™ magazine.

OPERATING SYSTEM: Gas Piston

CALIBER: 300 Blk

OVERALL LENGTH: 29.25 in (743 mm)

OVERALL WIDTH: 2.8 in (71 mm)

HEIGHT: 8 in (203 mm)

BARREL LENGTH: 5.5 in (140 mm)

WEIGHT: 6.5 lb (29 kg)

MAG TYPE: AR-15

FFL Transfer & Firearms Laws for Sig MCX Rattler Canebrake, .300 AAC Blackout, 5.5" Barrel Sig Sauer

All firearms, including the Sig MCX Rattler Canebrake, .300 AAC Blackout, 5.5" Barrel Sig Sauer, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.

How It Works

  1. Place your order online.
  2. Provide your preferred FFL dealer information.
  3. We ship the firearm directly to your FFL.
  4. You complete the background check and pickup at the FFL.

Legal Compliance

We comply with all federal and state firearm laws. It is your responsibility to ensure the Sig MCX Rattler Canebrake, .300 AAC Blackout, 5.5" Barrel Sig Sauer is legal in your state. Some states may have restrictions on certain firearm models or features.

Helpful Resources

Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.

Frequently Asked Questions About This Product

Why buy Sig MCX Rattler Canebrake, .300 AAC Blackout, 5.5" Barrel Sig Sauer from Miami Shooters Supply?

We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.

Where can I buy Sig MCX Rattler Canebrake, .300 AAC Blackout, 5.5" Barrel Sig Sauer?

You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.

Is Sig MCX Rattler Canebrake, .300 AAC Blackout, 5.5" Barrel Sig Sauer available now?

Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.

What category does this product belong to?

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What tags or features does this product have?

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Is this product legal in my state?

It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.

Additional information

Classification

Firearm
Manufacturer Number

PMCX-300B-5B-TAP-CANE
Brand

Sig Sauer

FFL Transfer & Firearms Laws

All firearms, including the Sig MCX Rattler Canebrake, .300 AAC Blackout, 5.5" Barrel Sig Sauer, must be shipped to a licensed Federal Firearms License (FFL) dealer. A background check and any required local paperwork must be completed before you can take possession.

How It Works
  1. Place your order online.
  2. Send us your preferred local FFL dealer info.
  3. We ship the firearm to your FFL after verification.
  4. Complete background check and pick up from your dealer.
Legal Compliance

We comply with all U.S. firearm laws. It is your responsibility to ensure the Sig MCX Rattler Canebrake, .300 AAC Blackout, 5.5" Barrel Sig Sauer is legal in your state. Some states (e.g. CA, NY, NJ) have restrictions on magazine size or certain features.

Helpful Links

Need help? Contact our team — we’ll guide you through selecting a compliant firearm and the FFL transfer process.

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