Yes, medieval times did have guns, though they looked nothing like modern firearms. Gunpowder weapons appeared in Europe by the late 1200s and became increasingly common through the 1300s and 1400s. By the final century of the medieval period, crude hand cannons and large siege bombards were fixtures on European battlefields.
How Guns Reached Medieval Europe
Gunpowder originated in China, where it was used in weapons as early as the 10th century. Early Chinese devices included “fire-spurting lances,” essentially flamethrowers made from bamboo or metal tubes. By the 13th century, both Chinese and Mongol forces were using gunpowder weapons extensively, and the technology had spread to the Middle East, where European crusaders and traders encountered it.
From there, knowledge of gunpowder moved westward. By the early 1300s, European armies were experimenting with their own gunpowder weapons. These weren’t rifles or pistols. They were heavy, awkward tubes made of bronze or forged iron, mounted on wooden frames or held under the arm.
What Medieval Guns Actually Looked Like
The earliest European firearms were called hand cannons or “gonnes.” They were simple metal tubes, closed at one end, with a small hole drilled near the back called a touch hole. To fire one, a soldier packed gunpowder and a projectile (usually a lead ball or stone) into the barrel, then touched a burning wick or hot wire to the touch hole. The flame traveled through the hole, ignited the powder inside, and launched the projectile.
This was a two-person job in many cases. One person aimed and steadied the gun while another applied the flame. Accuracy was poor, reload times were painfully slow, and the weapons sometimes exploded. One of the oldest surviving hand cannons, found in the ruins of Tannenberg Castle in Germany (destroyed in 1399), is a small cast bronze tube with a bore of only 15 to 16 millimeters. It gives a good sense of scale: these were small, crude devices, not the battlefield dominators they would eventually become.
Larger guns also existed. Heavy siege cannons, called bombards, were cast from bronze and used to batter castle walls. In the Teutonic Order’s territories in Prussia, written records mention gun barrels made from iron, bronze, and copper. Almost all of the heavy cannons referenced in those records were cast bronze. Some barrels were forged from iron, with a 1411 record noting the use of a type of refined Swedish cast iron for this purpose.
The Matchlock Changed Everything
The biggest leap in medieval firearms came in the 1400s with the matchlock mechanism. Before this, shooters had to manually press a lit wick to the touch hole while trying to hold and aim the gun, which made accurate shooting nearly impossible. The matchlock solved this with a simple but effective design: an S-shaped clamp called a serpentine held a slow-burning match cord, and a trigger lowered the serpentine into a small pan of priming powder on the side of the barrel. The flash from the pan traveled through a port into the main chamber and fired the gun.
This meant a shooter could keep both hands on the weapon and actually aim. Matchlock firearms went by many names, including harquebus, caliver, and musket. They were still slow, unreliable, and dangerous to operate, but they represented a genuine shift in how infantry could fight.
Better Powder, Better Weapons
Early gunpowder was a dry mixture of saltpeter, charcoal, and sulfur, simply stirred together. This “serpentine” powder had serious problems: the ingredients separated during transport, it absorbed moisture from the air, and it burned unevenly. A gun loaded with poorly mixed powder might fizzle instead of firing.
Around 1400, European gunners developed a technique called corning. They mixed the ingredients with a liquid (water, vinegar, or brandy), formed a paste, let it dry, and then ground it into granules. This process bound the saltpeter and sulfur into the fibrous structure of the charcoal, creating grains that resisted moisture and kept the ingredients in close contact during ignition. The result was powder that was more reliable, more powerful, and safer to store and transport. The earliest known text describing this wet-mixing technique was likely composed around 1400, with the oldest surviving manuscript copy dated to 1411.
Could Medieval Guns Pierce Armor?
Not very well, at least not in the early centuries. This is one of the most surprising facts about medieval firearms: they coexisted with plate armor for a remarkably long time without making it obsolete. Early guns were both inaccurate and weak in penetrating power. High-quality plate armor offered real protection against gunfire, a fact demonstrated by the many surviving pieces of medieval armor that bear “proof marks,” dents from deliberate test shots meant to prove the armor could stop a bullet.
Armored knights on horseback remained a dominant force on the battlefield well into the 1500s. The shift in power from heavy cavalry to infantry armed with guns happened only late in the 16th century, more than 200 years after firearms first appeared in Europe. Early guns were simply too unreliable and too weak to unseat a well-armored rider at any meaningful distance.
Guns in the Medieval Timeline
The medieval period is generally dated from roughly the 5th century to the late 15th century. Gunpowder weapons were part of European warfare for the last 150 to 200 years of that span. To put it in perspective: when people picture “medieval times,” they often think of knights, castles, and swords. All of those things were still very much present when guns arrived. The two worlds overlapped for generations.
By the time the medieval period ended around 1500, firearms were standard equipment in European armies, but they hadn’t yet replaced older weapons. Swords, pikes, crossbows, and plate armor all continued in active use alongside guns. The medieval gun was a new and growing technology, not yet the revolutionary force it would become in the centuries that followed.