What types of weapons were available in 1791?

That's a very specific date so lets see what wars were going on at that point in time?

• The Austro-Turkish war
• The Northwest Indian war
• The French Revolution
• The Russian Austrian war

The weapons available to these combatants would be Mortars cannon, Matchlock and flintlock rifles, muskets and pistols.

As examples of weapons, the Musket Model 1777 and the Charleville were commonly issued to Napoleonic armies in this period. With a 0.69" ball this musket could remove your arm at a range of several hundred yards. It's primary problem being it's likelihood to misfire and it's gross inaccuracy. Napoleon also commonly employed the Gribeauval 12-pdr cannon as field artillery.

SWords bayonets pikes and knives were used for close combat.

This question is probably being asked because this is the year that the 2nd Ammendment to the US Consitution was ratified, i.e. the authors of the Bill of Rights added the 2nd Amendment to the newly crafted U.S.Constitution which serves to protect the individual's right to bear arms.

To answer the question of what arms might they have had in mind when they crafted this particular amendment we can look to Tench Coxe, a delegate for Pennsylvania to the Continental Congress in 1788-1789, and a key anti-Federalist, writing under the pseudonym "A Pennsylvanian". He stated, "The power of the sWord, say the minority..., is in the hands of Congress. My friends and countrymen, it is not so, for The powers of the sWord are in the hands of the yeomanry of America from sixteen to sixty. The militia of these free commonwealths, entitled and accustomed to their arms, when compared with any possible army, must be tremendous and irresistible. Who are the militia? Are they not ourselves? Is it feared, then, that we shall turn our arms each man against his own bosom. Congress has no power to disarm the militia. Their sWords and every terrible implement of the soldier are the birthright of Americans. The unlimited power of the sWord is not in the hands of either the federal or state governments but where, I trust in God, it will always remain, in the hands of the people."