Star L85 blowback mod
 

Wow. That's pretty neat. I wonder if it was an after thought or something designed from the get-go as an aftermarket addition.

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

but with the plastic mechbox...

sounds like the gears/motor are really struggling....but could just be the audio

Damn it, when are people going to get over the whole plastic gearbox thing? Polycarbonates can be a hell of a lot stronger than the potmetal that most metal gearboxes are made out of. Just because you can see through it doesn't mean it's going to break.