SIG Sauer MCX Virtus 5.56 Pistol - Stealth Grey - 11.5"

Manufactured by Sig Sauer
Manufactured by Sig Sauer
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Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to



NOTE: When appropriate, areas with magazine capacity restrictions will receive a 10-round magazine substituted for the factory 30-round magazine.

The SIG Sauer MCX Virtus 11.5" 5.56 NATO 1:7 Gas Piston Rifle was conceived for the demands of the Special Operations community. Engineered for adaptability, accuracy, and longevity, this pistol features a 11.5" cold hammer forged carbon steel barrel that is user-changeable for mission specific adaptability. SIG’s proven internal recoil system offers reduced recoil in a compact platform. Enhancing accuracy, the MCX Virtus features the Matchlite Duo trigger for crisp, clean feel. A freefloating M-LOK handguard offers all the mounting space you will need for your choice of accessories. With familiar ambidextrous AR-style controls, and a folding adjustable stock, the MCX Virtus can be tailored to any shooter.

  • 11.5" cold hammer forger carbon steel barrel
  • Chambered in 5.56 NATO with 1:7 twist rate
  • Short stroke gas piston system
  • Side folding SBX Pistol Stabilizing Brace
  • SIG Matchlite Duo fire control group
  • Trigger pull weight: 4.5-6 lbs
  • 11" M-LOK compatible rail
  • 1/2x28 SIG Sauer 3 Prong Flash Hider
  • Collapsed/folded length: 22 in
  • Overall length: 31 in
  • Overall width: 2.8 in
  • Height: 8 in
  • Weight: 7.4 lbs

SIG Sauer is a world renowned firearms manufacturer with a rich history of innovation and design leadership. No other firearms manufacturer is so highly regarded and so universally respected for the quality, reliability, and safety of its products.
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Barrel CoatingSalt Bath Nitride
Barrel ContourProprietary
Barrel Length11.5
Barrel LiningSalt Bath Nitride
Barrel MaterialCarbon Steel
BrandSig Sauer
Caliber Gauge5.56 NATO
Frame SizeAR Pistol
Gas System TypeShort Stroke Gas Piston
Muzzle DeviceFlash Hider
Thread Pattern1/2 X 28
Twist Rate1:7
Weight7.4 lbs

WARNING: This Product can expose you to chemicals which is known to state of california to cause Cancer and Reproductive Harm. For more information, see

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