05 Raizen – GBB M4A1 MWS Inner Barrel 250mm

Description

Raizen is made of precise stainless steel which was the finest quality in Japan.
We’ve used this material for 20 years to create the best barrel.

Raizen has a tapered muzzle end.
The tapered muzzle makes better accuracy & FPS.

Dia. : 6.05mm
Outer Dia. :  8.55mm

6.05mm is good balance, not too tight & too loose bore.
The material has a tolerance. Stainless steel is the most precise material. This material has +-0.005mm tolerance.
It’s the finest quality in Japan (I can say in the world)
Also Tokyo Marui original bore is approximately 6.08mm so compared to Marui, 6.05mm is a tight bore.
It has a little clearance between BB & wall. So BB is reduced touches of the wall when go through the barrel.
So less friction ＆ unnecessary spin , Consequently accuracy will be improved.