Can you help me identify this disc?

I bought this disc off ebay a couple of days ago. ive thrown it a couple of times and it seems pretty stable . The bottom has a very shallow rim with a bead that kinda feels like a roc. The flight plate on top is completely flat. Its a lower grade plastic like dx or pro d. This disc is stamped with river city flyers team challenge from sept. 25th 2004. Anybody attend this tourny or know what this disc could be?

[Wicked Dyes]

Does it have any letters on the underside of the disc towards the center?

[Ryan Heath]

no, thats the first thing i checked. no letters or weight. disc is blank on bottom side except ink from previous owner

[Ben Calhoun]

$$$$ says Gateway, that's a very Gateway style stamp and plastic, so it could be an Element. Plus, it's a St. Louis company.

[Ryan Heath]

i believe you are right. thanks

[Donny Olow]

This Photo looks like Gateway !

[Kris Blum]

From looks of it my money would be on a roc.

[Socsavvy]

Like Ben said, its definitely Gateway...the stamp--especially being from St. Louis--is a dead giveaway.  It looks to be a mid-range of sorts, but without other identifiers I couldn't say which one for sure.   There's a good chance it's an Element, but Gateway has gone through a number of mid-range molds in the last decade so it could be one of many mids.  Hopefully another, more Gateway-savvy DGRUS user can help you pin down exactly which one it is...

[Justin]

Definitely Gateway. Most likely an Element.

[Ryan S. Flahive]

As with most of the other suggestions, I think its an Element--but it could also be a Warrior--

[Allonzy]

Its a Warrior - %100

[Ryan Heath]

Awesome. Were u at this tournament or are you just a gateway kinda guy?

[Allonzy]

If it looks %99 like a Roc, but its a Gateway disc, then its a Warrior.