Sig Sauer MCX Rattler (300 Blackout) Short Barreled Rifle (SBR) - Black

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*NOTE: This is an SBR and will need to be transferred to a SOT Licensed Dealer. Federal ATF Form 4 and Tax Stamp will be required.

Rapid deployment, thin, agile, and precise. This is the MCX Rattler. Featuring a 5.5″ PDW barrel, the MCX platform has never been more compact or accessible. Ready to go where-ever it’s needed, the MCX Rattler has a thin, foldable stock for easy concealment and stowage. This gun was designed from the ground up to be as discrete as possible while retaining all the capabilities of the MCX. Free-floating M-LOK handguards matched with a PDW upper and a PDW Ultra Thin Folding Aluminum Stock, the MCX Rattler SBR is the ideal choice for fast-moving operators.

Specifications and Features:

  • RMCX-300B-5B-TAP-SBR
  • Gas Piston Semi Auto SBR
  • 300 Blackout
  • 5.5″ Carbon Steel Barrel
  • Threaded 5/8X24
  • 30 Round Lancer Magazine
  • AR-15 Magazine Compatible
  • Free Floating M-LOK Aluminum Hand Guard
  • Sig Sauer Match Duo Enhanced Trigger
  • Polymer Grip
  • Minimalist Folding Stock
  • Sig Sauer Muzzle Device
  • Aluminum Frame
  • Compact Platform
  • Ambidextrous AR Style Controls
  • Overall Width 2.8″
  • Overall Height 8″
  • Overall Length 23″ Extended
  • Overall Weight 5.1lbs
  • Matte Black Finish
SKU: 798681581313-1 Categories: , , Tag:


Additional Information
ManufacturerSig Sauer
ModelMCX Rattler
TypeSBR (Short Barreled Rifle)
Caliber300 Blackout
ActionGas Operated Semi-Auto
Receiver FinishHard Coat Anodized (Black)
SightsNo Sights
Barrel Length5.5″ Carbon Steel
Overall Length23″
Weight5.1 lbs
Pistol BraceFolding Minimalist
MagazineOne 30-Round Lancer Magazine
UPC Product Code798681581313
Manufacturer SKURMCX-300B-5B-TAP-SBR

Additional Information Content

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