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◆Brand Catchphrase A rubber factory in downtown Tokyo.
There was a father who loved airsoft games.
Rubber packing is an important part that can be tuned in various ways depending on its hardness and shape.
However, I was always dissatisfied with the products sold at the gun shop because they didn't have the shape and hardness I expected, and they were relatively expensive.
Therefore, the Miyagawa Rubber Special Chamber Packing Project was launched with the intention of making it myself, who is a professional rubber processor.
By sticking his skills as a rubber processing professional into survival games, he created an ideal rubber packing at a low cost.

◆Message from his father He loves airsoft games so much that he created his own chamber packing.
  From molding to processing, we offer domestically produced and domestically finished chamber packing at a low price.
Please try it first. The difference from Marui genuine products is that the outer shape is 0.1mm larger to improve airtightness.
Therefore, it may be difficult to enter the chamber, but if you apply a little silicone oil etc. and push it in, it will definitely enter.
*Do not use petroleum oil such as KURE5-56 as it will expand the rubber.