||This thing is FANTASTIC! will fit onto any "full metal" aeg barrel, the front end of an SRC M4 I have will not fit this part without a new delta ring. But I have put it onto a Dboys M4 body and it fit snug as a bug in a rug! :D
It is an EBB (Electric Blow Back) which means the mock bolt will open an close each time you fire not that it has recoil
Easy to install (You will need basic knowledge of an AEG)
Uses pins to hold the body, not chicago screws so you don't need a hex wrench to take it apart!
All mags I have (Lonex Flash Mag, Dboys, and JG) fit well, a little loose.
The wiring has a spade connector, and one that looks like the motor connectors, most aeg's front ends do not have one of each, but have 2 spades (like the actual connectors on the motor) You can pick one up at any auto parts store though and crimp it on.
Price is a bit steep you could almost buy a new aeg for that much...
All in all, Definitely worth the price if you need a new, reliable AEG Gearbox, and upper and lower receivers :D! Evike Rocks!!!!!!
Rating: [5 of 5 Stars!]