Real Tritium night sight for the Marui Model 18c gas blowback pistol.
Yes, this is actually a real Tritium capsule product. Imported from Switzerland, the Tritium sealed capsules are installed into this product to give it a permanent low-level glow for 10-20 years. Nine Ball combines the technology with their high quality housing to form a premium night sight option for the Marui XDM.
Tritium is a radioactive isotope of Hydrogen with a half-life of 12.32 years; that means the sight will loose roughly 50% of its starting brightness in about 12 years then in the next 12 it will be down to 25% and halving so on every 12 years.
As an alpha and low level beta emitter there is simply no health risk unless you removes the capsule, break it open and ingest the contents. Otherwise, the basic radiation emission of this product is on par if not lower then the natural background radiation present in a natural environment. This means that for all intents and purposes this product is inert.
Previously, this option was only available to KSC version as they can install the real steel sights but now Nine Ball gives us one specifically designed for the Marui variant. Now you can install a permanent night sight on your beloved Marui 18C!
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