No special name for it.
Yes, you can buy a gun case for anyone.
A gun with a laser.
put the gun in the case! :P
shoot
a gun repairer
Can't be answered wihtout knowing what type of "gun" you mean.
he found the gun from a suite case
To call shot gun means they call first at something. Ex: if kids call shot gun at an event that involves riding in a car then they are claiming the front seat.
broach is the tool to cut rifling.
thunder gun or rpk
It kept the gun lighter by removing metal where it was not needed.
No, not even a sword.