This gun is bonkers. It's firing 400+fps on 0.20g bbs out of the box so my local skirmish site insist I use it as a dmr.
If I could attach a scope on this, it would be a sawn off sniper.
It's only let down is the magazine is junk, I advise regularly tightening the screws and if you accidentally over load it with bbs it will explode in your hand.
Best £90 I ever spent