Guides
How to start airsoft, choose gear, stay legal and look after your gun. Written in Japan.
- Airsoft in JapanPlaying airsoft in Japan as a visitor: how fields work, what it costs, what to bringA practical guide for travellers who want to play airsoft in Japan. How open days work, rentals, the chrono check, etiquette that differs from the US and UK, and what a day costs.
- Law and safetyJapan's airsoft law explained: the 0.98 J limit, where it comes from, and what it means for your gunThe Japanese Firearms and Swords Control Law sets an energy limit for airsoft guns. Here is the actual rule (3.5 J/cm²), how it becomes 0.98 J for 6 mm BBs, the 0.135 J youth standard, and what happens if a gun exceeds it.
- GearBB weight explained: what changes between 0.20, 0.25 and 0.28 g, and why Japan plays on 0.25How BB weight affects velocity, energy, trajectory and range, with numbers. Which weight to run for AEGs, gas guns and bolt actions, why 0.25 g is the Japanese default, and what joule creep means for your chrono reading.
- Airsoft in JapanJapanese gas guns and HFC134a: why they're built for "duster gas", and what green gas does to themTokyo Marui, KSC and Marushin gas guns are designed around HFC134a, a lower-pressure gas than green gas or propane. What that means for velocity, parts life, Japan's 0.98 J limit, cold weather, and whether you can convert a Japanese gun to green gas.
- GearLiPo batteries for AEGs: choosing, charging, storing, and what not to do7.4 V vs 11.1 V, reading mAh and C ratings, picking a charger, safe storage voltage, and how to dispose of a puffed pack. A first-LiPo guide for AEG owners, with notes on what Japanese-spec guns can take.