Generally, a telescopic one. Like a scope on a Sniper rifle
Telescope
it makes the gun moire accurate when you are not aiming down the sight
Both can be equally accurate
Blue Book of Gun Values
No. It does not have any rails, nor is it accurate enough to need one.
Depends on the target. Generally, but not always, a telescopic sight.
The question can't be answered as written.
Super soaker 8000
How do you sight a power line 880 bb gun?
AIM B Style Red Dot Gun Sight-wrong your barrel
The front sight is called "the front sight."
Yes, a front and a rear sight.