Re: FN2000???
I own one, I have the one with the integrated scope. It's accurate as all get out, I have no problem using any size clips, but it's picky as hell about what clips it will use.
The "weird" casing ejection is part of the allure of the gun really... it has a casing ejection system that allows you to shoot five shots before casings come out.
I assume this feature was designed tactically, but it's little more than a conversation piece in the average shooters hands.
If left open, the casings travel from the ejection port to the front of the rifle exiting via tube near the front of the rifle where a gas adjuster would be.
It's very fun, very accurate, and my only real complaint is that the integrated scope makes it look like something out of star trek. Also, the gun is mostly plastic giving it a "toy feel".
I would never have bought one, but I got it on trade and will probably keep it unless someone offers me the right deal to take it off my hands. All in all, I think there are far better guns out there like the Sig 556 or just your standard AR-15 build which are not only cheaper but more appealing both aesthetically and functionally.
So I hope this helps your decision, I actually registered for these forums only to make this post, so now to browse around and find a reason to stay