the best ones are spring snipers because they tend to work better during spring season. Gas pistols can work good in Winter but be sure to fill your gun up using LG gas when they come to your house to fill your gas bottles!!
if its spring pistol get a new spring or a better piston (if they even make upgraded pistons for pistols) if its gas i cant help you
Varies by the pistol. Normaly better than spring.
It all depends on the strength of the spring airsoft rifle. If your refering to pistols (I will assume you are), I prefer a co2 or green-gas pistol over a springer anyday. In the big picture, springers are regarded as cheap and useless. Although the fps may be better than that of the gas, it's range (and the fact that you need to cock spring guns after every shot,) it is usually better to save up your cash and buy a good gas pistol. However, even I need to admit that some springers (i.e. quality snipers {runs you about 90-110 American dollars}) are way better than their co2 and green-gas counterparts.
If it's designed to work with gas, you have to use gas, no other way.
a gas or spring powered one. never electric, electric powered pistols SUCK. i would suggest a green gas luger if your looking for power, or maybe a green gas desert eagle. those are good airsoft pistols.
Yes. Gas revolvers are semi automatic, there are some spring pistols that must be re-cocked after each shot.
no
Signaling
Revolvers ftw
NONONONO
Both are equally fine. Depends on your use.
i am a professional. what you need to know about a sniper is that most snipers are going to be spring powered, unless you get a dragonuv or something else that is electric or gas which i do not recommend. spring powered is the best for snipers, electric for assucalt rifles, and gas for pistols. on spring sniper rifles, it is going to be a bolt action gun, with a very high fps (feet per second) if you get a good company and a gun with a high price. there are no sniper rifles that are good, that are under $150.00. you want a gun from the companies: CA (Classic Army), TM (Tokyo Marui), ICS, and many more. if the gun comes in a package of the gun and the scope its okay. but if it comes with 2 magazines, bi-pod, scope, rail, and like a million more stuff then its crappy. sniper guns should be at least 400 fps or higher. here are some sites: www.airsoftgi.com www.kapowwe.com www.trinityairsoft.com www.echo1usa.com have fun airsofting. :]