Hello,

Weapons engineering is a specialty under mechanical engineering. As a weapons engineer, you will have to deal with collection of equipments, structures, vehicles and communication systems which are specifically designed for warfare.Weapons engineers are also concerned with lifecycle management of different military weapons and the systems to operate them.

Weapons engineering is not a common field of study. It draws from a number of engineering disciplines and is a super specialization. In order to pursue this course, you will have to cross the following stages:

• Complete your +2 level with good marks in physics, chemistry and mathematics.
• Sit for the entrance examinations conducted by various private and public bodies. Then complete a four year degree course in mechanical, electronics, metallurgy, electrical or chemical engineering.
• it for the post graduate entrance examination. You can specialize in the weapons engineering only at the post graduate levels.

Since it is a highly specialized field, you can expect very good salary even at the entry level. In addition, since the employment is necessarily in the military, you enjoy a number of perks and benefits as well.

Hope this helped. 

Good luck!