SIG SAUER MCX Rattler PSB, Semi-Automatic, 300 BLK, 5.5" Barrel, 30+1 Rounds

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Key Features

  • .300 AAC Blackout
  • 30+1 rounds
  • 5.5" barrel
  • 3-position pistol brace
  • Free-floating M-Lok® handguard
  • Gas piston system runs cooler and cleaner
  • Includes (1) 30-rd. magazine

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SIG SAUER® MCX® Rattler PSB .300 AAC Blackout Semi-auto AR Pistol

Rapid deployment, agility and precision: this is the SIG MCX® Rattler. Built around a cool, clean gas piston system, PDW upper, and 5.5" barrel, the MCX platform has never been more compact or versatile. Ready to go wherever it's needed, the MCX Rattler PSB features a 3-position telescoping pistol brace for stability and easy concealment. This gun was designed from the ground up to be as discrete as possible while retaining all the robust capabilities of the MCX. Polished off with a free-floating M-LOK® handguard, the MCX Rattler PSB is the ideal choice for fast-moving operators.

  • Gas piston operating system runs cooler and cleaner than standard direct impingement
  • Built on a PDW (Personal Defense Weapon) upper receiver and 5.5" barrel
  • Telescoping 3-position arm brace
  • SIG Enhanced Trigger with 5.5-9 lb. pull weight
  • Free-floating M-Lok® handguard accepts a wide range of accessories
  • Accepts standard AR-15 magazines
  • Includes (1) 30-rd. magazine

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Key Specifications

  • Item Number: 704922
  • Caliber: .300 AAC Blackout
  • Action: Semi-automatic (gas piston)
  • Capacity: 30+1
  • Barrel Length: 5.5"
  • Barrel Material: Carbon steel
  • Barrel Twist: 1:5"
  • Brace: 3-position
  • Fire Control: SIG Enhanced
  • Handguard: M-Lok
  • Overall Length: 19.3"
  • Overall Weight: 5.1 lbs.
  • Mfg. Number: PMCX300B5BTAPPSB
  • UPC: 798681581306