【D.craft】BARREL EXTENSION type2 's Japan Review

I was concerned that it would be loose without the elastic...
But it was awesome, so 5 stars!

Unlike the Type 2, it has more cuts.It works well with DMC's Batlas series. I used it with Target, Tiga, DMC, and Trinidad barrels, but I noticed loosening in all of them. o-rings or other countermeasures are necessary.

It is not particularly loose and has no practical problems.
I have been trying to bias the barrel toward the rear center of gravity, back balancing, and
I have tried back balancing and metal shafts to bias the barrel toward the rear center of gravity.
I thought this would be a good way to change the balance of the barrel and change my mind.

My friend grips the shaft around the base of the barrel.
The ring cut is not too much, so it is not too much of a hindrance.
It was well received.