770-500-F-I-R-E (3473) | info@ssusa.co

770-500-F-I-R-E (3473) | info@ssusa.co

Sig Sauer MCX Rattler 5.5" .300blk

10 in stock

SKU: PMCX-300B-5B-TAP Categories , Tags ,
  • Caliber- .300 Blk
  • Barrel Length- 5.5″
  • Barrel Twist: 1:5in
  • Barrel Material- Carbon Steel
  • Capacity- 30 rounds
  • (1) 30 round mag included
  • Action Type- Semi-auto
  • Operating System- Gas Piston
  • Folding Brace included
  • Accessory Rail- M-lok
  • Overall Length- 23″
  • Weight- 5.1 lbs





The Sig Sauer MCX Rattler 5.5″ .300blk featuring a 5.5″ PDW barrel, the MCX platform has never been more compact or accessible. Free-floating M-LOK handguards matched with a PDW upper and a PDW Ultra Thin Folding Aluminum brace encourage modularity and lightweight mindset. The Sig Sauer MCX Rattler 5.5″ .300blk was designed from the ground up to be as discrete as possible while retaining all the capabilities of the MCX.


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