[E-PiLLs]

ok i'm just confused, if you change the board in the ir3 angel to the ones that takes 9vlt battery it becomes a fly?

[nlrunkle]

What makes it a Fly is if it has Eyes or not or has had Eyes added to it, either Ace'ed or Master Tech'ed.

[dr.strangelove]

The IR3 Fly was just one of the milling/anodizing patterns available. The "Fly" has what look like fly eyes milled into the solenoid housing, a low rise feedneck and accompanying breech cut, and came in additional colors.

With the A4 generation, the Fly series included eyes whereas the standard model did not. That it is the only generation where that has been the case.