the weight of the gun is completely irrelevant. and distance doesnt matter. also it depends on what gram bbs you use. but .12g at 435 fps muzzle velocity should go accurately nowhere because theyre too light. use at least .20g but .25 is better. they should go around 150 feet accurately. but theres a lot of factors. weight of the gun definitely doesnt matter though.
280 fps
it depends what kind?
Well, the legal FPS for an airsoft gun is 450, but you can get snipers, AEG's, etc. that run up to 600 FPS and beyond.
go for the m14, unless its cheap looking.
360 fps
It has 450 fps
300 to 375
300fps- 400
I don't no about spring, but the Green Gas M700 Sniper Rifle Competition Professional Airsoft gun, has 720-FPS!!!! And the, Spring CSI L96 Bolt Action Airsoft Sniper Rifle, has 550-FPS. They are both from, Hobby Tron.com
Airsoft miniguns can shoot at a variety of fps's, it can range from aroudn 200-700 fps. These guns are not very accurate however have a very high rate of fire, and is mainly used to spray around the enemy
For and airsoft gun. Yes that is 200 fps over the CQB limit
at minimum 330.