What's the big deal with Gravity Knives?
Growing in popularity among both knife collectors and enthusiasts, gravity knives have a storied history going back to World War II. Pocket knives are as versatile in their opening mechanics as they are in their applications, and gravity knives are favored for both their effectiveness and reliability.
In this post, we’ll discuss the history of gravity knives, their legal standing within the United States, and where you can pick up some of the best ones.
What Are Gravity Knives?
Generally speaking, a gravity knife is any knife that uses gravity as its primary mechanism for opening. The blade is stored within the handle, and the user employs gravity—often in the form of a motion like a wrist flick—to bring the blade out.
It’s important to note that just because a knife can be opened with gravity, that doesn't necessarily mean it is a gravity knife. If the knife is designed to be opened in another way, such as via a thumb stud, then it is not considered a gravity knife.
While many people group gravity knives and switchblades together, they have some notable differences. The most important is that switchblades use a spring-powered mechanism to deploy the blade, often controlled by a button or switch. Additionally, switchblade knives are more heavily regulated under the law than gravity knives.
History of Gravity Knives
It’s difficult to say when the first gravity knife was invented, but most experts agree these blades rose to fame during the Second World War. The German military created a knife in 1937 specifically for its paratroopers—the Flieger-Kappmesser—that could collapse to fit into a soldier’s pocket, saving precious space.
The knife’s purpose was to cut parachutists free from their riggs if they became tangled. A spike on the opposite end from the blade was used to help detangle knots while packing the parachute. By 1944, the knife was being commissioned to infantry troops for use in close combat.
Although gravity knives became largely outdated for military use sometime in the 1990s with the introduction of the Microtech HALO knife, they still continue to enjoy popularity among civilians.
What States Are Gravity Knives Illegal In?
Despite popular myths, gravity knives are legal in a majority of states. However, this hasn’t always been the case. Back in the 1950s, U.S. lawmakers took action to outlaw knives that could be opened with one hand, namely switchblades and gravity knives. However, many states have revisited their statutes to allow for legal possession of these blades.
Currently, Delaware is the only state that outright bans gravity knives. 11 Del. C. 1953, § 1446 outlaws any knife that opens with a spring mechanism or with the force of gravity. Additionally, it is illegal in several states to carry a concealed a knife.
While some states no longer outlaw gravity knives, local municipalities may. For example, New York has repealed its gravity knife laws, but New York City still criminalizes carrying one.
Top 3 Most Popular Gravity Knives
With their growing popularity, many knife enthusiasts are on the lookout for the best gravity knives for sale. We’ve done the research to present you with three of the best gravity knives on the market.
Reate EXO Mini Drop Point Gravity Knife
The EXO Mini Drop Point Gravity Knife from Reate is perfect thanks to both its utility and aesthetics. This knife features a 2.625”, bead-blasted, stonewashed CPM 3V steel blade. The 3.75” handle is ideal for people with smaller hands or those looking for more compact options. The deep pocket clip makes this knife perfect for everyday carry.
Reate Exo-K Karambit Gravity Knife
Another great knife from Reate, the Exo-K Karambit Gravity Knife stands out for its 3.07” hawkbill blade. While this knife has a lot of utility, what really makes this product stand out is that it comes with an unsharpened training knife, allowing you to practice deploying the blade safely until you’re ready for the real deal. The trainer is a hit with past buyers!
Bestech Knives: Emperor
Available in gold titanium, the Bestech Emperor is a slick, simple yet elegant knife. With a 3.625” blade, this knife is the longest on our list, making it a versatile option. Its CPM-S35VN steel blade makes this knife reliable and durable—perfect for concealed carrying and utility.
Why Choose a Gravity Knife?
Gravity knives are perfect for anyone looking for a smaller knife that’s easy to carry. More than utility, they also stand out for their aesthetic flair—both visually and in their deployment mechanism. Plus, they’re a ton of fun.
Before you make a purchase, check your local laws to ensure gravity knives are legal where you live. Above all else, prioritize your safety and that of anyone around you.