If you plan on charging into the playing field and wielding a custom Airsoft gun to defend your team, you will need to know the proper way to customise it first. Proper customisations can include simple optics or battery upgrades, but pros even upgrade the internals, including the gearbox. As Airsoft guns become more standardised, several companies have started using different versions of gearboxes. The word "version," however, is misleading. To upgrade, you don't move up a version; you use an upgraded gearbox of your current version. Most guns only function with one type of gearbox. There are seven versions of gearboxes on the market as of early 2011.
- Skill level:
Find the manufacturer of your gun. The retail box should have this information. You are able to utilise the "version" upgrades if your gun is made by Classic Army, ICS, or Tokyo Marui.
Check the name of the gun. Usually it is a series of letters and numbers, like AK-47 or M-16. The retail box should also yield this information, or you can check the manufacturer's or retailer's website.
Use a Version 1 gearbox if you have a TM (Tokyo Marui) FAMAS SV or FAMAS F1.
Utilise Version 2 gearboxes if your gun is a CA (Classic Army) CA36C, 15A4RIS, M15A4SPC, 15A2 Carbine, M15A2 Tactical Carbine, M15A4 Carbine, M15A4 Tactical Carbine, MP5A2, MP5A3, MP5A4, MP5A5, MP5SD2, MP5SD3, MP5SD5 or MP5SD6. Version 2 also goes with the ICS MP5A2,MP5A3, MP5A4, MP5A5, MP5SD2,MP5SD3, MP5SD5 and MP5SD6.
Buy a Version 3 gearbox if your weapon is a Classic Army CA36C or Tokyo Marui G36C.
Use a Version 4 gearbox only if your gun is a Tokyo Marui PSG-1.
Adopt a Version 5 gearbox only if your weapon is a Tokyo Marui UZI.
Employ a Version 6 gearbox if your gun is a Tokyo Marui Thompson M1A1, P90 or P90TR.
Use a Version 7 gearbox if your gun is an ICS M4A1RS, M4A1MS, ICS A1 R.I.S. or C15FS.
Tips and warnings
- If your gun is made by another manufacturer, consult a local or online retailer for gearbox upgrade options, or make your own if you are an advanced user.
- Do not use a gearbox version that is not designed for your weapon. It may not fit, or it may cause damage to the gun.
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