ERIE, Colo. (AP) — Unnoticed amid dozens of tract homes in the Denver suburbs, a nondescript industrial building is suddenly in the middle of the gun control debate in Colorado.

The company, started in an ex-Marine's basement in 1999, is in a standoff with Colorado Democrats who want to restrict the size of ammunition magazines after mass shootings in a suburban Denver movie theater and a Connecticut elementary school. Magpul has issued lawmakers an ultimatum potentially worth millions: Pass the bill, and the business will move.

It's a bold threat from a company that, by its founder's admission, has distanced itself from politics.