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SIG MCX Rattler PCB In Stock!

The new SIG MCX Rattler PCB 300 Blackout pistol with 5.5 inch PDW threaded barrel, it’s SIG Sauer’s newest edition in the MCX Pistol lineup. This Rattler is equipped with free floating M-LOK Handguard and side-folding Pivoting Contour Brace (PCB). SIG’s PCB folding brace makes it even more easy to conceal, in you favorite bag or brief case. Like always the SIG Rattler PCB 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 PCB the weapon of choice for close quarter operators. Shrooms. always stocks a full line of SIG Rattlers at the Best Price Online, including the MCX Rattler PCB. Contact us with all your SIG SAUER Rifle needs or chat with us online during normal chat hours. SIG MCX VIRTUS Patrol


SIG MCX Rattler PCB (Specifications)


  • UPC: 798681600182
  • Manufactures Item Number: PMCX-300B-5B-TAP
  • Operating System: Gas Piston
  • Caliber: 300 Blackout
  • Barrel: 5 1/2 inch (140 mm)
  • Magazine: (1) AR-15 30rd Aluminum Mag