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SIG MCX Rattler .300 BLK



SIG SAUER MCX Rattler PCB .300 Blackout Pistol 5.5 inch PDW Barrel side

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SIG MCX Rattler

SIG MCX Rattler Ships Free!

The new SIG MCX Rattler 300 Blackout pistol with 5.5 inch threaded barrel, it’s SIG Sauer’s newest edition in the MCX Pistol lineup. This Rattler is equipped with free floating M-LOK Handguard. Like always the SIG Rattler is suppressor friendly with its adjustable gas piston system. It’s perfect to fine tune your favorite suppressor and ammunition combos. Built for Rapid deployment, It’s light weight compact design, makes this MCX Rattler the weapon of choice for close quarter operators.

Xtreme Guns and Ammo in Richmond Texas always stocks a full line of SIG Rattlers at the Best Price Online, including the MCX Rattler. Call XGA with all your SIG SAUER Rifle needs at 832-363-3783 or chat with us online during normal chat hours.

SIG MCX Rattler (Specifications)

  • Brace: as of 8/1/2022 Sig is not Shipping Pistols with Braces
  • UPC: 798681673179
  • Manufactures Item Number: PMCX-300B-5B-TAP-NB
  • Operating System: Gas Piston
  • Caliber: 300 Blackout
  • Barrel: 5 1/2 inch (140 mm)
  • Magazine: (1) AR-15 30rd Aluminum Mag
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Additional information

Weight 10 lbs

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