[Stealth]

Originally Posted by Warlock

Has someone heard about this ?

http://orga-airsoft.com/is-wider-better/

A new inner barrel design combined with a firefly nub to creater a perfect flat hop-up setup.

That's basically Ishioka's flat-hop with some trick bits like the bucking nub offset window.

The R-hop is an evolution of that idea.

As for the widebore barrel, the 6.23mm inner barrel is accepted amongst real airsoft precision shooters as jaw-droppingly accurate.