The best gas powered sniper rifle for under $400 would be the kjw m700. it costs $190 and the quility of this gun is amazing. fps is good. the barrel would be the only thing you should really upgrade..
Airsoftmegastore.com has a great selection. I got the agm l96 scope and bipod package for $120. With .25 bb's it shoots about 385 fps but with standard ammo it easily shoots 400
super 9, it is about 410 fps and is about $60. It has an extremely long barell but does not come with a scope mount. it is extremely accurate once you get the hop up figured out
JG BAR 10
TM VCR 10
Super 9
No
MB03 by well
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
Buy a decent sniper rifle (gas or spring) a scope if it doesn't come with one and then practice.
airsplat.com's Well l96 spring rifle is the gun of my choosing
go for the m14, unless its cheap looking.
A paintball sniper rifle can shoot father.
UTG Shadow ops airsoft sniper rifle (L96 Type 96)
THAT DOESNT WORK BECUASE THEY ARE TWO DIFFRENT GUNS. AN AK47 IS AN ASSAULT RIFLE. A SNIPER IS A DIFFERENT KIND OF RIFLE.
A paintball sniper rifle can shoot father.
You can but i suggest .25 or .28
Deff a sniper rifle