The UAC Magazine base are for user with a Tokyo Marui 5.1/4.3 Hi Capa GBB that you may find very useful.
There are many different variants but they are all CNC machined from aluminiumand also come in many colours, such as Silver, Black Red, Purple and Gold. The 3 different versions have their own style but they do have one thing in common, the numbers 1, 2, 3 and 4.
These most certainly adds style and flare for those who are in the race guns community. These are far more durable than the original versions and lighter than the steel base version.
What you can do is ink the number you prefer so you can properly identify the specific magazine at a glance knowing which magazine need.
With so many unique models of the series in our line-up so by all means browse through them all to see which ones you like most.