[RainyEyes]

Originally Posted by VMV2014

Here is a youtube video with how the blowback works: https://www.youtube.com/watch?v=SwufNwmtglI

Link to doc on google drive with steps and photos
https://drive.google.com/file/d/0B2u...ew?usp=sharing

(Had to do this since I coulnd't upload it as an attachment)

So what actually puls the bolt back? Cutting down the bolt isn't a big of an impact as it is the pressure of the springs. Right now I hear your motor whining for sweet mother Theresa to put it out of it's misery.

If you used a shorter and weaker spring I'm sure you could accomplish better EBB. This is very similar to APS' EBB design. If you were able to set up a series of gears that are pulled by a separate electric motor or something other than the piston going back, that would be a real game changer.