Inside Look: SIG Sauer MG 338 Machine Gun

by
posted on January 22, 2020
** 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. **
Ahead of SHOT Show 2020, SIG Sauer provided an in-depth look at the company's revolutionary new MG 338 machine gun, designed for U.S. Military use.

The SIG MG 338 is designed particularly to provide a platform that, in effect, splits the difference between the U.S. M240 machine gun and the .50-caliber M2 Browning. Compared to the current M240 (7.62 NATO) machine gun, the SIG MG 338 is noticeably lighter, weighing only 20 pounds, and is designed to provide enhanced capability over the 7.62 NATO M240.

In comparison to the M2, which has been in U.S. military service for nearly a century, the MG 338 is about 75 percent lighter, offering a man-portable solution with a similar effective-range to the .50 BMG. The guns are also outfitted with SIG Sauer Next Generation Suppressors, which drastically reduce the impact of harmful toxic fumes and signature. The SIG Sauer MG 338 machine gun is a belt-fed, lightweight medium machine gun weighing under 20 lbs., chambered in .338 Norma Mag.

The MG 338 features a short-stroke gas piston system and a proprietary recoil mitigation system, with a free-floating, quick-change barrel, ambidextrous controls, switchable feed tray, charging handle that can be alternated to either side, depending on user preference. As a multi-caliber, modular system, the new SIG MG 338 is easily convertible to 7.62 NATO.

For more information on the MG 338, check out our American Rifleman First Look video above.

Latest

Armed Citizen Podcast John Lott 1
Armed Citizen Podcast John Lott 1

Why the Murder Rate Quickly Fell to a Likely Historic Low

If the gun-control Left is to be believed, then the murder rate in the U.S. should be going up. After all, gun sales and ownership rates have been rising for the last few decades and anti-gun groups claim that gun ownership is the cause of violent crime. This, of course, is nonsense.

16 New Bolt-Action Rifles for 2026

From cutting-edge precision rifles designed for competition or hunting to traditionally styled guns that emulate designs from yesteryear, 2026 saw the introduction of an incredible array of bolt-action rifles.

Review: Chiappa Rhino 60DS 10 mm Auto

The Italian-designed-and-manufactured Chiappa Rhino remains unique today as the only current revolver with the barrel mounted at the bottom of the frame, firing from the chamber at the 6-o’clock position.

5 New Large-Format Pistols for 2026

There's been a huge surge in the large-format pistol category, and 2026 continues to showcase new models answering the wants and needs of today's firearm owners.

Short & Powerful: The EOTech Vudu 4-12x36 mm Super Short Riflescope

EOTech's ultra-compact 3-9x32 mm Vudu was a popular addition to the company's variable-powered riflescope line, and the new 4-12x36 mm Vudu ups the ante with new features in a still-compact package.

The Armed Citizen® May 11, 2026

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

Interests



Get the best of American Rifleman delivered to your inbox.