Rifleman Q&A: What Is A Magazine Disconnect?

posted on January 25, 2021
** 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. **
disconn.jpg

Q: I have just started reading American Rifleman, and I love the technical information in the magazine. But it seems like you guys sometimes assume every reader knows what every gun term you use means. What is a magazine disconnect? Is it the same thing as a safety? 

A: The answer is “yes” and “no.” A common misconception—usually made by those not familiar with semi-automatic pistols—is to assume that when the magazine is withdrawn from the firearm, the gun is empty. There may still be, however, a live round in the chamber.

If the slide is in battery with a cartridge chambered, the gun—whether a single-action like the M1911 or a double-action (first shot only) like the Beretta Model 92FS—can be fired, even with the magazine removed. A magazine disconnector, sometimes called a magazine disconnect safety, is designed to prevent this.

Thus, a handgun such as the Browning High Power, which has a magazine disconnect, cannot be fired if the magazine is even partially withdrawn, as the firing pin is mechanically blocked from striking the primer. With the magazine fully reinserted, the handgun becomes operational again. 

For some, the presence of a magazine disconnect is a welcome feature and another layer of mechanical safety—of course, no mechanical device should take the place of common safety practices, including always keeping the muzzle pointed in a safe direction and assuming every gun is loaded. 

Nonetheless, the inclusion of a magazine disconnect has some potentially serious drawbacks in a handgun intended for defensive use. For example, if the magazine has not been completely seated in the gun, which can happen, especially under stress, the pistol will not fire. Too, inadvertently depressing the magazine release while drawing the pistol has the same unwanted effect. 

Also, while performing a tactical reload, in which a partially empty magazine is replaced with a fully loaded magazine in a situation where increased capacity might be needed, a magazine disconnect renders the gun useless during the reloading process. This puts the handgunner momentarily in a vulnerable situation with a partially loaded gun that will not operate.

I experienced all of these situations while undergoing the strenuous but comprehensive 250 Pistol Class at Gunsite in Paulden, Ariz. Whether or not you opt for a pistol with a magazine disconnect, it is critical that you understand how your pistol operates (or when it doesn’t) and train to become proficient with whatever handgun you choose.

Latest

TU 33 Studio01
TU 33 Studio01

The Norinco TU-33/40: A Rimfire Mauser Lookalike from China

The Norinco TU-33/40 is, at a glance, a copy of a Mauser 98k with a few choice details that give away the fact that it’s not a big-bore World War II workhorse.

AI Tools Enter the Used-Gun Market

Companies that deal in the used-gun market are not shy about sharing the advantages their AI-driven tools and services.

Standing Guard | Standing on the Line for Freedom

This past August marks 46 years since I raised my right hand and was commissioned as an infantry officer in the United States Marine Corps. In the summer of 1980, I entered active duty with a firm sense of civic duty and a deep desire to serve our great nation. Like so many who wear the uniform, I was ready to contribute directly to the defense of freedom.

Making Baschieri & Pellagri Shotshells

Italy is known for its many makers of fine-quality shotguns, but what many might not known is that Italy is also home to one of the industry's top manufacturers of shotshells for hunting and sporting use: Baschieri & Pellagri.

Rifleman Interview: Volquartsen Firearms

Several of Volquartsen’s excellent rimfire firearms were on display at “Plinkapalooza” earlier this year.

Army Purchases EOTECH Electro-Optics

EOTECH recently announced that the U.S. Army had purchased 14,000 of its lasers, holographic optics and magnifiers for use on the military's M7, XM8 and M250 platforms.

Interests



Get the best of American Rifleman delivered to your inbox.