I'm designing a 5.56 belt fed upper

I have a belt fed upper I've designed, and I'm nearly finished a prototype. I'd like to share it here, but it seems my account is too new to post pictures. Here is some info about it:

-23% more bolt carrier travel than an AR15 (Patent Pending) -Constant recoil design makes full auto firing more controllable -Increased reliability stripping rounds from links -Uses AR15 barrels -Ambi top cover latch -Dual ejectors for reliability

Edit: Added an imgur album showing the progress of the prototypes! https://imgur.com/gallery/HFwyLUt

Edit again: I'm calling it the LIMA SIX