Garand Thumb features the PSA AKV 9mm AK Pistol. Fromm Palmetto State Armory, this is designed for use with the Palmetto State Armory U9 magazines. If you think it is a Vityaz copy, it is because the non-availability of the 9mm Russian SMG in the U.S. market that their PSA team decided to reverse-engineer the Vityaz based on photographs, resulting in the PSA AKV 9mm AK Pistol.