2021 Sig Sauer MCX Rattler Canebrake Pistol - 300 Blackout

Rattler Canebrake

Stock #MCXP-8863
MSRP: $2,899 USD
Discount: $205
Your Price: $2,694 USD

169 people have recently viewed it.
Check Availability

Hi, my name is and I'm interested in this 2021 Sig Sauer Pistol MCX Rattler Canebrake - 300 Blackout . I'm in the area and you can reach me at or by phone at

**ALL Firearms are for Local Pick-Up ONLY, along with Background Check Approval**

SHIPPING OF FIREARMS IS NOT AVAILABLE

SIG MCX® Rattler Canebrake Pistol - 300 Blackout

The pistol variant of this game-changing system features the revolutionary side-folding Pivoting Contour Brace.

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.

  • Status:
    New
  • Vehicle:
    2021 Sig Sauer MCX Rattler Canebrake Pistol - 300 Blackout
  • Model Number:
    PMCX-300B-5B-TAP-CANE
  • Stock Number:
    MCXP-8863
  • Location:
    Harsh Outdoors, Eaton, CO 80615
  • Warranty:
    Manufacturer's w/ Extended Available

Our Location


Harsh Outdoors
600 Oak Avenue
Eaton, CO 80615

Prices shown are not final and do not include sales tax, dealer freight, set up fees, finance charges, vehicle registration fees, or any other fees required by law. Prices may be subject to changing incentives. If applicable, incentives may require a trade-in, financing, or other specific qualifications and restrictions. Reasonable efforts are made to keep information on this website accurate, but Dealer and/or its affiliates do not assume responsibility for omissions or for misprints or other errors displayed on this website. EPA mileage estimates are for newly manufactured vehicles only, so actual mileage will depend on how the vehicle is driven and maintained.