In terms of most magazines on popular models such as the m16, m4, ak47, etc... yes.
No
Tokyo Marui was created in 1965.
only if the mp5 is a Tokyo marui clone. if it is a clone then it should be able to use any Tokyo marui accessory or part, because it is an exact replica of the Tokyo marui.
No, only with a few Marui selected models, or with airsoft guns that have a threaded barrel of the same size.
The internet. There are many online Airsoft stores that sell Tokyo Marui guns.
Tokyo Marui is a manufacturer of air soft guns which is based in Tokyo in Japan. It also sells equipment associated with air soft guns. You can find out more on their website.
If you are looking for a spring pistol, go for any Tokyo Marui High Grade Hop Up models. If you are looking for an AEG, go for the Tokyo Marui G36c.
10hr
possibly in quality by a little but not in performance.
Go for Tokyo Marui (TM) or Classic Army (CA) FN P90.
There are many easily upgradable airsoft guns. The easiest to upgrade are M4/M16 and AK style guns, and other guns that use the same gearboxes. For example the Ares Tar-21 uses an M4/M16 style gearbox with some slight changes, but it is compatible with M4/M16 parts. Depending on how much money you plan to spend, you have a few options. You can go straight for the standard and get a Tokyo Marui, which is what all other airsoft guns are based on. Most after market parts are made for Tokyo Marui guns. If you are on a tighter budget, you can get a china clone like a JG or DBOYS with a Marui compatible gearbox. These are very good starter to mid level guns that can be upgraded with Marui parts. The only problem that I personally have with China clones is that the externals feel cheap, which I can't stand.
8.4 Volts Tokyo Marui Mini-s type battery