Conventional means ordinary or accepted standards; so for today, yes.
Back in the days of Knights & Kings, maybe not; swords and bows would have been conventional.
Its a gun.
If by "bomb" you mean a conventional explosive weapon, then the nuclear weapon is more powerful.
Many believe that projected energy weapons will make conventional weapons obsolete.
Gun
gun grenade gatling gun
it is a weapon, an machine gun
You did not list a weapon.
Weapon.
A saw is short for a military gun, squad automatic weapon. A saw is short for squad automatic weapon. It is a military gun.
Weapon + Gun Powder = Firearm
Weapon + Gun Powder = Firearm
the stock is what you use to hold the weapon by.