try looking at nerfhaven.com for good instructions with pictures
for the light yes but not for actually using it.
It requires 2 AA batteries to use the laser function.
The Nerf Longshot can only take streamline darts. streamline darts can work with all guns but the nightfinder
The related link shows a video on how to modify the Nerf gun
The Nerf Elite is good product if you intend to modify it.
The Nite Finder costs $9.99 in Canada in most stores, and if you are lucky you can find a double pack for $19.99 to $24.99.
Just look up videos on youtube on how to modify your nerf gun.
There is no such nerf gun as the n-strike cs6. But a how-to on modifying any nerf gun can be found on youtube.
The Nerf Elite is good product if you intend to modify it.
There are very few way to modify a Nerf Buzzsaw, however cutting off the piece that stops the ball from falling makes the blaster semi-automatic. That's probably the easiest modification to do.
It is possible to modify a Nerf Hornet AS-6, however it can be quite difficult. The easiest modification would be to plug the pump, to decrease the amount of necessary pumps, but another good one would be to rebarrel the blaster with brass.
What's the name of the gun? And just go to nerfhaven.com