Sig Sauer MCX Rattler Pistol – 300 BLK


Caliber – 300 Blk

Capacity – 30 + 1 Rounds

Barrel Length – 5.5″

Twist – 1:5″

Thread- 5 / 8″-24 tpi

Rail – Free-floating M-LOK

Muzzle- 3-Prong Flash Hider

Safety – Manual Thumb

Sights – Optic Ready / Picatinny Rail

Overall Length- 15.4″

Weight – 5.10 lbs

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Rapid deployment, thin, agile and precise. This is the SIG MCX Rattler. Featuring a 5.5″ PDW barrel, the MCX platform has never been more compact or accessible. Ready to go wherever it’s needed, the MCX Rattler features a folding pivoting contour 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. Free-floating M-LOK handguards matched with a PDW upper and 5.5″ barrel, the MCX Rattler is the ideal choice for fast-moving operators.

Additional information


Sig Sauer


.300 AAC Blackout


30 Rounds

Firearm Type