Sig Sauer RMCXR556N16BRX2 MCX Regulator w/Optic 223 Rem/5.56 NATO 10+1 16 Black Nitride Muzzle Brake Barrel, GEN II NiR FDE Cerakote ARCA/Pic Rail Aluminum Rcvr, Flat Dark Earth Synthetic Magpul SGA 590 Stock, Ambi, SIG ROMEO2 Red Dot, Rifle

Overview

The Sig Sauer MCX Regulator is a semi-automatic rifle chambered in 5.56x45mm NATO. Built on the MCX platform with a short-stroke gas piston operating system, it features a 16-inch cold hammer-forged carbon steel barrel with a black nitride finish and a Sig 2-port muzzle brake. The rifle is equipped with a proprietary lower receiver, a two-stage match trigger, and a built-in ARCA/Picatinny rail. The FDE Cerakote finish is treated with a reduced weapons visual-IR signature (GEN II NiR) coating. The rifle includes a Magpul SGA synthetic stock in Flat Dark Earth and features fully ambidextrous controls, including a magazine release, safety selector, and bolt catch. This package comes with a 3 MOA SIG ROMEO2 red dot optic and a 10-round polymer magazine. The firearm has an overall length of 39.10 inches and a 1:7 twist rate.

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