New: SIG Sauer MCX-REGULATOR

The latest model in SIG Sauer’s MCX family, the MCX-REGULATOR combines the upper receiver of the MCX SPEAR-LT and gas piston system with a new lower receiver, trigger and stock.

by
posted on March 12, 2024
SIG Regulatorranchrifle 1
Built on the MCX platform, SIG Sauer’s new MCX-REGULATOR rifle is available chambered for 5.56 mm NATO and 7.62x39 mm cartridges.
SIG Sauer

SIG Sauer has announced a new model in the MCX family called the MCX-REGULATOR that combines the upper receiver of the MCX SPEAR-LT and gas piston system with a newly designed lower receiver, trigger and stock.

MCX-REGULATOR with ROMEO2 optic
The new SIG Sauer MCX-REGULATOR model chambered in 5.56 mm NATO is available with a factory installed ROMEO2 optic.

 

Available chambered in 7.62x39 mm and 5.56 mm NATO calibers, the MCX-REGULATOR is an aluminum-framed rifle with a gas-piston operating system, and sports a Magpul SGA Mossberg 500/590 traditional stock in a Gen II NiR FDE Cerakote (for reduced IR signature). It also features a redesigned lower receiver that is compatible with all MCX upper receivers, fully ambidextrous magazine release, safety selector and bolt catch, two-stage match trigger, a cold hammer-forged carbon steel barrel, a SIG designed compensating muzzle brake, M-Lok accessory rail and built-in Arca rail for tripod mounting.

Additionally, the SIG Sauer MCX-REGULATOR chambered in 5.56 mm NATO is available in with a factory installed three-MOA ROMEO2 optic (SKU: RMCXR-556N-16B-RX2).

The MCX-REGULATOR rifle model chambered in 5.56 mm NATO has a 16-inch barrel with 1:7-inch twist, while the 7.62x39 mm model’s barrel is the same length, but with a 1:9½-inch twist.

MCX-REGULATOR ranch rifle
Overall length of the SIG Sauer MCX-REGULATOR is 38.9 inches (39.1 inches for the 5.56 mm NATO model), and the weight, sans magazine, is 7.9 pounds.

 

In addition, the new SIG Sauer MCX-REGULATOR rifle ships with a 10-round polymer magazine.

“The heart and soul of this rifle is one of our flagship products—the legendary MCX,” SIG Sauer’s Chief Marketing Officer and Executive Vice President, Commercial Sales, Tom Taylor said. “This is the first time the DNA of an Elite Special Forces battle platform, flawless function and a short stroke gas piston system has been specifically designed and visioned for the working rifle. At SIG, we don’t subscribe to the premise that its acceptable to compromise for any purpose, including your working rifle, and this rifle will revolutionize a day at the ranch or however you use your REGULATOR.”

Learn more about the new SIG Sauer MCX-REGULATOR rifle at sigsauer.com.

Latest

2025 GAOS 2
2025 GAOS 2

NRA CEO & EVP Doug Hamlin On 2025 NRA Great American Outdoor Show: ‘A True Celebration Of American Freedom’

Massive crowds descended on Central Pennsylvania for 2025 NRA Great American Outdoor Show.

Upgrade Your SIG P320 With The Brouwer M1823 Steel Grip Module

This steel grip module is compatible with standard P320 magazines, slides and fire control units, and has a built-in magwell.

NRA Celebrates Centennial Anniversary: 1971 National Matches

The year 1971 marked 100 years of operation for the National Rifle Association of America.

NRA Range Development & Operations Conference Announced For August 2025

NRA Range Development & Operations Conference to be held in Fairfax, Va., August 21-22, 2025.

Weaver Mounts Unveils New Website

Weaver Mounts launches new website at WeaverMounts.com.

Winchester Celebrates Groundbreaking For 6.8 mm Ammo Facility At Lake City Army Ammunition Plant

The groundbreaking ceremony was for the state-of-the-art 6.8 mm ammunition facility at Lake City Army Ammunition Plant in Missouri.

Interests



Get the best of Shooting Sports USA delivered to your inbox.