Problem #1. Its good to exercise the mind though…
Some of the problems with this idea have already been pointed out, like the carrier still having to go somewhere…
Additionally, there’s no way you’re going to fit all that crap on a standard AR upper. You’d need a taller receiver, taller gas block etc.
I pointed this out in your other thread trying to invent a new operating system, but I’ll say it again - you have a lack of understanding of how these weapons work and are built. It’s clear from your diagrams alone.
So you don’t own an AR at all. And you’re not an engineer. What is your level of experience with the platform?
What perceived problems are you trying to solve, other than maybe the ability to use a folding stock (which has been done, somewhat unsuccessfully on ARs, and more successfully with other piston designs with similar manual of arms/ergonomics)?
Sorry if I come across as a dick - I appreciate the urge to create something new and different, but I really don’t feel like M4C is the place for these kinds of threads. Learn more about the system you’re trying to improve upon/re-design, and lay off the MS paint for a bit…
And, finally, to clarify - were you or were you not banned from M4C already with the screen name Zollen?
I don’t have any license. I could not afford $1000 just for personal entertainment.
I think a custom shorter BCG would have to be provided in order for this to be considered a drop-in kit. As I pointed out earlier, there would be zero-to-minimum modification required.
A short BC would open up a whole new can of worms.You have a very thoughtful mind,i just don’t think firearms are your thing.Maybe i’m wrong 
.
Do you have any understanding or basic knowledge of the AR-15 or any other firearm for that matter, other than pics from the Internet?
Sorry, but I don’t believe thats the case. The barrel in your diagram is sitting too low, allowing room for your op rod and “front buffer tubes”. There would not be room for all this crap to fit between barrel and the handguard without it being miniature. On a piston AR the op rod lines up with the gas key, one of a modified design with a face for the piston to strike. The op rod does NOT enter the receiver ABOVE the key. Your design works in MS paint because shit isn’t correctly proportioned. I don’t see any way you could actually produce such a design as drop in. Nor do I believe that it would work as you envision.
AGAIN:
What is your level of experience with this platform?
Were you or were you not banned from M4C already?
Then what are you doing here exactly?
Supplying a new BCG still doesn’t make it drop in.
The receiver height issues would still need to be addressed as would the issue of how the heck to fit all those parts under a set of handguards without using proprietary ones. There just isn’t much room to work with under there.
You can’t effectively design components for a system you have no experience with and no model to consult/work from.
Theoretical discussion and mental exercises are fine, but you are going to get a cool reception here from actual users, builders, designers, and other industry experts on continued “cocktail napkin” designs.
Again, if you are serious about developing upgrades or accessories for this weapon system you need a hands on model. This would not be $1K for personal entertainment it would be an investment in your education and preferred career, as would some professional hands-on training with the AR15 series and pursuit of a degree in Mechanical Engineering, classes on machining, CAD, etc. In fact you probably need to buy several, a DI one, and a few of the different piston designs, maybe even study some of the other weapon systems that already incorporate side folders (SCAR, AK, FAL, etc.)
If you are just doing this for personal entertainment, well… that’s not why I am here, but I appreciate the heads up and will leave the discussion.
Locked for now.
cptm4 PM sent.