Video—ARTV: SIG Sauer MCX and MPX

by
posted on July 30, 2018
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
With virtually the entire SIG Sauer line made in its Newington, N.H., facility, SIG Sauer is proud to produce American-made firearms. A few of its notable firearms include the MCX multi-caliber rifle and MPX family of submachine guns. With a large military and Law Enforcement customer base, SIG has been able to develop commercial variants of its military contracted firearms, including the MCX. The MCX is an AR-variant rifle that has the ability to change out barrels, handguards and stocks. Additionally, as a multi-caliber firearm, it can quickly be converted to fire .300 BLK, 5.56 NATO and 7.62x39 mm. SIG's MPX is another military firearm converted for the average consumer market. The idea for this gun was to bring back the MP5, but with a more modern design. The MPX is offered in an 8" pistol model without a brace, an 8" pistol version with a brace, 8" SBRs and a 16" with a telescopic stock. Check out this segment from a recent episode of American Rifleman TV to learn more about SIG Sauer and its MCX rifle and MPX family of submachine guns.















Additional Reading:
Video: SIG Sauer MCX
Video: A Closer Look at the SIG MPX
NRA Gun of the Week: SIG Sauer MPX Pistol

Latest

Springfield Saint Victor New Models 01
Springfield Saint Victor New Models 01

Springfield Updates Saint Victor AR-15 Lineup

Since 2019, Springfield Armory has offered its Saint Victor line of AR-15s with enhanced features, and for 2025, the company has updated those features to keep pace with consumer demands.

In Memoriam: Wiley Clapp

Longtime American Rifleman Field Editor and contributor Wiley Clapp passed away June 4, 2025. He was 90 years old.

Fiocchi Of America Joins The Kinetic Group, HEVI-Shot Moving Operations

The Kinetic Group has officially added Fiocchi of America—and exclusive rights to Baschieri & Pellagri in the United States—to its lineup of top ammunition brands.

Inside NRA’s New America’s Rifle Challenge

NRA has developed a new competition designed to promote better marksmanship with America’s rifle—the AR-15 platform.

The Armed Citizen® Sept. 1, 2025

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Numerous Companies Offering Firearm, Ammo Rebates This Fall

Now that summer 2025 is drawing to a close, we'd like to welcome in the rebate season, and this year's specials are hard to ignore!

Interests



Get the best of American Rifleman delivered to your inbox.