Someone needs to make a Extended version of the Bulgarian Krinkov 4-Piece  Flash Suppresser to double as a Barrel extention for those of us that live in communist "NO SBR"  States!!

That would be the Shiznit!!

how were you thinking of extending it?  i haven't been able to come up with an idea that wouldn't turn it into a sound suppressor.  

Quoted: how were you thinking of extending it?  i haven't been able to come up with an idea that wouldn't turn it into a sound suppressor.

I would think that if the extended body portion was machined with only a slightly larger ID than the rifles actual bore it would not act as a expantion chamber like a sound supresser would!!  The last 2.5" would be the same as (or simular to) the real Bulgy 4-Piece!

militarygunsupplry.com offers an extended vertion of the Traditional Krinkov style FH as a barrel extention..., so I guess they have figured something out in that regard???

I'm thinking the 4-piece would be more effective as well as way cooler!!

i also remeber that during the ban people were getting SBR krinks made with the 4 piece HOBO by drilling a couple of holes in the expansion chamber to make the FH ability non-functional.  that may be another option to add to your idea for "safeness".

Nope..., no holes!!

I want the full flash hiding ability of the 4-piece design...., that & it's ability to project the muzzle blast totally forward are two reasons I want this design as a barrel extention!!!

You might want to contact these guys,
Noveske
The currently make the american version of the 4 piece for the ar15.  I like the idea for having a functional attachment for krinkov and ak105 type rifles.