Star Airsoft L85 Series "Blow Back Conversion Kit"
 

This kit really seems to add a bit of realism to Airsoft

http://www.starairsoft.com/S_L85_03.htm

Link isn't that good for me...damn cheap internet... but DAMN. GBB conversion would be awesome.

I wonder what this would cost... getting video to see it now.

That would make it an EBB, it is not changing to gas as it is just attaching the bolt cover to the piston in a way.

Yeah, it's just like the Guarder AK "auto-back" kit. Looks pretty, but that's about it.

Looks cool, but they should have made it standard.

On the real steel L85A2, you can't shoot left handed with it or the shell ejector would crush your nose, think it will do the same with this

No.
Doesn't even have NEARLY the power, as the mechanism (evaluated on Arnies) is mainly seperate from the gearbox, it just slides along slowly (you could stop it with your fingertips).
Besides, there's no real 'bullet', in the gun, or reaction caused by one...

Agreed, after installing mine, I decided it wasn't worth the stress it places on the front trunnion, as well as the mechbox internals/shell. One of my main beefs is that without that reinforcing bars which normally sits on top of the mechbox, the shell halves don't quite mate properly.

But the bolt itself is a beaut, and if you remove most of the rear guiderail, you have a part that looks quite nice, and racks all the way back too.