Question

What was different, or unique, about the musket parts that were first introduced in a demonstration to President John Adams In 1801?

Answer 1

The musket parts were interchangeable.

Explanation:

Before this each musket or rifle was handmade. If a part broke the part had to be individually crafted to fit that weapon.

This was the beginning of mass production that Ford later made famous in the production of the car. Each part could be fitted into any musket. A weapon could be put together from any collection of the parts.