Sig Sauer MCX-R Regulator 5.56x45mm, 16" Barrel, Coyote Cerakote, ROMEO 2 Red Dot, 10rd

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Manufacturer Number:
223 Remington
Sig Sauer MCX Regulator
Unit of Measure:
The SIG MCX-R Regulator is the newest member of Sig's MCX family. Equipped with an Aluminum frame, it is finished in Gen2 NiR FDE Cerakote. Additional features include a 16 inch, cold hammer forged carbon steel barrel, a Magpul SGA Stock and fully ambidextrous Mag Release, Safety Selector and Bolt Catch. Sig offers this new MCX-R Regulator Rifle in 5.56NATO. A SIG designed 2-port Compensating Muzzle Brake on the 5.56 models is accompanied by a Receiver Integrated ARCA Rail, with a lower receiver that is compatible with all MCX Uppers.
Brand Sig Sauer
Category Tactical Rifles
Series Regulator w/Optic
Model MCX
Caliber 223 Remington / 5.56x45mm NATO
Gun Platform AR-15 Style
Operating System Gas Piston
Stock Finish Group Brown
Stock Material Synthetic
Action Semi-Auto
OAL 39.1"
Hand Ambidextrous
Sights None
Barrel Finish Black Nitride
Barrel Material Carbon Steel
Muzzle Sig 2-Port Muzzle Brake
Twist 1:7"
Receiver Description ARCA / Picatinny Rail
Optic Description SIG ROMEO2
Receiver Material Aluminum
Safety ARCA / M-LOK
Stock Description Magpul SGA 590
Barrel Description Muzzle Brake
Barrel Length 16"
Max Capacity 10 Rounds
Receiver Finish GEN II NiR FDE Cerakote
Trigger Two-Stage Match
Weight 8 lbs
Stock Finish Flat Dark Earth
Handguard Finish Flat Dark Earth
This purchase comes with the Impact Guns Lifetime Warranty  (Read More)

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We want you to be 100% satisfied with your purchase from Impact Guns, therefore we offer no hassle returns.

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  • Log in to your account and locate and click on the "Request Return" link.
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  • As an alternate method, you can send an email to Please be sure to include your original order number and relevant contact information.

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  • Returns must be charged back to the original credit card used in the purchase.  If this is not possible, we will refund you via check.

What about damaged/incorrect items?

  • If you received a damaged, defective, or incorrect item, Impact Guns will ship you a replacement of the exact item upon receipt of the damaged or defective item. Impact Guns will send you a return shipping label for the return.

What about return shipping costs?

  • If an Impact Guns error causes the need to return an item or we are replacing a returned defective or incorrect item, then we will pay the associated shipping costs.
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