This is kind of a mechanic question, but it's about a very specific model, so I thought I'd post it here so people with the same bike can take a look. It's my first fixie so pardon my noobness.

I just received my new IRO Angus. (Ignore the weird orientation of the drops) I've assembled most of the bike, but can't seem to get the quill stem into the head tube far enough. As you can see from the photos below, the stem makes it into the head tube about 2-3 inches and comes to an abrupt stop. This is not nearly deep enough to be hitting any butted section. When I try to hit down on it pretty hard the wedge gets stuck and I have a hard time getting it back out. Any ideas?

Thanks in advance.