Gao Yang and his team contributed a considerable amount of money to Jack, and finally settled on the guns they wanted to use.
Purchasing guns at the Aliland-Moson Studio, although only involving assault rifles, did not require a special customization; the biggest benefit was that even if one bought a mass-produced brand-name gun, Jack would modify it as much as possible before handing it over, ensuring that each gun achieved the best effect, at least the best among mass-produced guns.
The guns were not cheap at Jack's, but one got what one paid for, and the items Jack delivered were definitely worth the price, and the quality was guaranteed, so, incidentally, anyone in need got themselves a backup gun.