Chinese M870
China has made unlicensed M870 copies by Norinco as the Norinco HP9-1 and used by the People's Liberation Army as the standard shotgun.
The M870 copy is a widely-distributed design no longer under patent protection, and most parts interchange freely. In the United States, where Norinco products are specifically non-importable, this gun is imported and sold under the names Norinco Hawk 982 and Interstate Hawk 982.
Read more about this topic: Remington Model 870