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SIG MCX-R Regulator



SIG MCX-R Regulator, 5.56NATO, 5.56NATO w/ROMEO2 optic and 7.62X39 models.


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SIG MCX-R Regulator

SIG MCX-R Regulator Ships Free

The SIG MCX-R Regulator is the newest member of the SIG MCX family, and is now available! Sig offers the MCX-R is 5.56NATO and 7.62X39 calibers that are optic ready, and shooters also have the option to purchase the 5.56NATO with a ROMEO2 optic already installed. Sporting an Aluminum Frame finished in Gen 2 NiR FDE Cerakote, the MCX-R is fitted with a Magpul SGA Stock and fully ambidextrous controls including the Mag Release, Safety Selector and Bolt Catch. Additional features include the 16 inch, Cold Hammer Forged Carbon Steel Barrel, a 2 Stage Match Trigger and a 2-ported compensating muzzle brake on the 5.56 models and a 3-ported compensating muzzle brake on the 7.62X39 model. Engineered with a lower receiver, that is compatible with all MCX Uppers, every SIG MCX-R Regulator also includes a Receiver Integrated ARCA Rail.

Xtreme Guns and Ammo carries the extensive line of Sig Sauer Rifles and pistols in stock and on sale, including the SIG MCX-R Regulator. Shop online 24/7, chat with the Sig Pros online, during regular store hours, or call (832)363-3783 for answers to all of your Sig Sauer questions and needs.

SIG MCX-R Regulator (Specifications)

  • Model: 5.56 NATO, RMCXR-556N-16B, UPC-798681696413
  • Model: 5.56 NATO w/ROMEO2 Optic, RMCXR-556N-16B-RX2, UPC-798681696956
  • Model: 7.62X39, RMCXR-762R-16B, UPC-798681696963
  • Caliber: 5.56NATO, 7.62×39
  • Barrel: 16 inch
  • Twist: 1:7 (5.56), 1:7.5 (7.62X39)
  • Barrel Material: Cold Hammer Forged Carbon Steel
  • Trigger: 2-Stage Match
  • Frame Material: Aluminum
  • Frame Finish: Gen 2 NiR FDE Cerakote
  • Overall Length: 39.1 inches (5.56), 38.9 inches (7.62X39)
  • Magazine: 10 rounds
  • Height: 5 – 5.5 inches
  • Width: 2.4 inches
  • Weight: 7.9-8 pounds (7.62)


Additional information

Weight 10 lbs

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