It sounds suspiciously similar to the S&T 417 I had, which was also V2.5 compatible. Here's hoping that it's built better. Between the wood screws securing the motor plate to the grip, the irritating mag release that would rotate out of position when pressed, the awful front-end flex, and the M4-spec buffer tube (so not 1:1 scale), the S&T 417 was a real mess.