Okay so I inherited an airsoft gun from my dad and I cannot tell what model it is, so i can't buy extra magazines unless i know the model. It is a Glock shaped model with no form of literature or symbols anywhere, except the serial that reads "COP 471 US". It is a green gas model and has semi-auto and full-auto functions. It has a metal slide and a plastic frame, and there is no trigger safety. The slide is orange in the front. If I can get some pictures, I will post them.