This is a posable action figure from the Revoltech series.
Here's a sharply sculpted miniature positron rifle and an optional lower left arm, intended for use with Revoltech Miniature EVA-01 Rebuild of Evangelion Version. Please note that figures such as this are mass produced, and as a result some inconsistencies in finish and painting may occur; these are not considered manufacturer's defects. If you absolutely must have perfection, prepare to do some touch-up work on your own.