not all airsoft guns have the orange tip

for example the Raider-L im buying wount have it

but it depends on the licensing system that your country uses and shit like that

i dont like the orange tips coz then i cant threatern little kids as easily

Do you live in the UK or US? or other?

and Gas is only really good for pistols
Electric / Battery / AEG is best for assult rifles
Bolt Action rifles are good for Snipers

i buy my guns from http://www.zerooneairsoft.com/ (UK Only i think) - good Priced BB's and Guns

ALSO, the thing with gas blowbacks, the Mags can easily leak, thats why i would not recommend a Gas Assult Rifle

a Good gun for a beginneer / first gun is a Raider-L but i could only find the Raider on that site

http://www.hobbytron.com/ElectricGGCombatMachineR16RaiderRifleFullMetalAirsoftGun.html

Has around the same range but not as powerful