Da Vinci Airsoft: Guren inner barrels

Da Vinci Airsoft wanted to introduce their new Guren inner barrels:

Dear Sir, We are new Airsoft upgrades manufacture, da Vinci airsoft.
Some users have already known us cause we made custom inner barrel to sell Europe area.

Now we will set up new company and add new lined up.
First series are plating barrel  named “Guren”

Today I show you “Guren 1”
Guren 1 is simple design to reduce the cost.
So lower cost but have enough quality.

We process the special plating against the rust.
And set longer window for R hop customs.
If you will use some manufacture’s rubber,please check if it’s fit.

Now we have only 6.03mm inner diameter.
Sooner add 6.08mm and stainless steel edition.

Vivian, (da Vinci Airsoft)