Custom weapon goes flying whenever it's dropped

[G0RII]

I'm making a standalone weapon mod from a ported asset and for some reason, no matter how I set it up in the geck, whenever I drop it doesn't simply drop to the ground, but instead launches outward and I can't grab it unless I find it. The model itself has no collision errors, in fact if I save it as a different weapon in another mod, it behaves normally. If I save another weapon model onto it, that model will then go flying. I've made custom weapons before and have not run into this problem. I have no idea what's causing it but it has to be related to the geck rather than the model itself. Anybody know what might be causing this?

[G0RII]

Bump because this is still a f*#@ing problem