From Kotobukiya. The 40th installment of the M.S.G WEAPON UNIT series features multi-caliber weapons based on the concept of a rifle capable of using various types of ammo. In addition to gun barrel parts for Multi Caliber Gun and Submachine Gun, the product also includes various magazine parts, so users can switch out the gun's magazine to change the appearance of the ammo type when displaying. All the connection points on the magazines are 3mm in diameter so they can be combined with other products from the M.S.G series. The perfect size to use with Frame Arms, Frame Arms Girl, and Megami Device series, these rifles can be used and swapped out to create a variety of situations!