Firearms

Cannons

Matchlocks

Though they are crude weapons, matchlocks are much more simple to craft and produce than other forms of firearms, making them far more common to find than their rarer counterparts. Even so, a matchlock firearm has many shortcomings. They are highly prone to misfiring, practically useless outside of a certain range, bested in accuracy by both bows and crossbows, and are useless at puncturing or even denting well-forged plate at all but very close ranges. Even so, these firearms have become wildly popular primarily due to their extreme ease of use, as a peasant levy handed a matchlock rifle will be able to cause more damage to enemy forces than one given a crossbow or sword with minimal training. Spears and maces are still the most common weapons given to levy forces, but matchlock firearms have proven to be much more effective for ranged units than untrained men with bows or crossbows.
Though other forms of matchlock weaponry exist, rifles are far and wide the most common. The ignition method means that the speed and free hand granted by flintlock or wheellock pistols is all but nullified, and the less powerful combustion means that a blunderbuss would lack the power to give the weapon its proper spread and punch.

Wheellocks

Less commonly seen than other forms of handheld gunpowder weaponry, wheellock weapons are much more delicate and complex than their matchlock or flintlock counterparts. However, this more complicated design gives these weapons certain advantages over other sorts of firearms - namely that they are more quick to fire, more accurate, and work more dependably under harsh weather conditions.
Usually held only by nobles, wheellocks require a fair amount of upkeep to continue functioning properly due to the somewhat complex mechanism which sparks the powder to fire the weapon, but this allows them to be much more dependable during the heat of battle. They are much less prone to missfires than their counterparts and, unlike the much more common matchlock rifle, can be held ready to fire at a moment's notice.

Pistols

Pistols are perhaps the most common form of wheellock weaponry. Easily carried, maintained, and loaded, wheellock pistols are especially favored by seafaring combatants due to their comparative light weight and dependability in rain and choppy seas. Some pirates and brigands have been known to carry multiple sets of these firearms holstered around their body, letting them fire off a number of shots in rapid succession without the need to reload, or have access to more than one shot in the event of rain.

Rifles

Blunderbusses

Flintlocks

Often hailed as the pinnacle of modern firearm technology, the flintlock design is nevertheless subject to certain faults. Though far better in every aspect than the cheaper and more common matchlock firearms, flintlock weapons are still occasionally prone to misfires or backfires, and take longer to load and prime for firing than the intricate contraptions of wheellock firearms.
Still, the explosion of a flintlock mechanism is much more powerful than that of its cousins', and even pistols have been known to put dents into sturdy plate armor at decent ranges. Flintlock blunderbusses and rifles become especially dangerous to all but those wearing the highest quality armor available as, even if the shots don't shred through poorly forged steel, they'll dent it with the impact of a war hammer.
As with wheellocks, flintlock firearms are incredibly rare to find and usually forbidden to stay within the hands of civilians, afforded only to elite troops and nobility by most laws.

Pistols

Dragons

Rifles

Though difficult to clean, maintain, and properly aim with decent accuracy, the flintlock rifle is nevertheless one of the most deadly weapons on the modern battlefield. While plate armor would normally shrug off the hits of all but the heaviest great bows and arbalests, a flintlock rifle with the proper proximity can put a massive dent in even the thickest of plate, sometimes even puncturing through the material entirely.
Unfortunately, the flintlock mechanism isn't without fault, and the lack of dependability in poor weather coupled with the weapon's tendency to misfire or backfire means that it is not often deployed in battle. A skilled man with a longbow could still fire ten times as many arrows in a minute than even the most well-trained man with a flintlock musket, and the weighty bolts of heavy crossbows are much more accurate and effective for punching through lighter sets of armor. Flintlock rifles are usually only used by scouting or sniping units who hope to flank heavily-armored enemies and wipe them out before they can reach the heat of battle.

Blunderbusses

When fired at a very close range, a flintlock blunderbuss is possibly the most devastating handheld weapon developed by kith to date. The immense power of the flintlock combustion sends a barrage of metal shots flying from the weapon's end with enough power to completely shred a man's torso through a brigandine shirt. Plenty of reports over the years have detailed shards of bone being expelled from the opposite end of a man blasted with one of these weapons.
The flintlock blunderbuss is often given the nickname "the long hammer" as the shattered bones and caved in armor plating it leaves behind are comparable to the swings of a great maul. Even with its destructive power, the spread of a blunderbuss makes it very risky to use in large-scale warfare, and is typically reserved for smaller skirmishes or hunting excursions.

Hand Mortars

Hand mortars are rather controversial weapons that see very limited use on the battlefield, and usually only from forces desperate to make their limited numbers count. Instead of being designed to fire a metal shot as a rifle or cannon, the hand mortar is instead designed to propel explosive incendiary devices (sometimes called "grenades") across the battlefield which would, theoretically, explode on impact or after a short amount of time.
Though these weapons have the potential to annihilate entire squadrons of enemy forces, their usage in warfare has been few and far between due to the weapon's rather large tendency of misfires and backfires, both of which often result in the deaths of the soldier carrying the weapon and every soldier around him.