What MIGHT be inside....
now could ANYTHING from a shitty micro-switch POS to a basic trigger/trolley
but as said MIGHT be like BattleHawk internals...
At first glance it looks like an Ultimate/Lonex gearbox but Lonex tappet plates have cut out like Cyma V2's
(where extra material is upfront & INSIDE the Cyma box, hence the tappet is cut/stepped at front)
I don't see a stepped tappet plate so not quite a Lonex oem box like it looks like
or nope the tappet isn't stepped...
View attachment 63587
Think Ultimate have a "regular" tappet plate - not stepped
but I see people refer to them as Ultimate/Lonex as nigh on same box
so who knows if they share stuff or have revised things
From the looks of things, it seems that Lonex make the stepped tappet plate
but the pic seems to show no real pronounced extra material inside like Cyma V2's
So maybe Lonex are Ultimate's and you might have an oem type box with fancy mosfet if you're lucky
Though classic Lonex/Ultimate's were not QC springs, likely something like the TomTac V2 boxes
(they were QC springs but looked like Lonex - but weren't)
But who knows what is there, likely a oem TomTac type box LT seem to use in higher end guns with fancy ETU
Could be an oem SA box, not really up on recent boxes tbh
gears look std China gears - probably OK, box isn't reinforced so 13:1's drop straight in
motor entry point has little support for for motor tower/sleeve
(common on non reinforced boxes), so ensure motor doesn't slop about in pistol grip
(or motor really will jump all over the place and whine)
Looks OK, think it was the look of the gun than the brand that caught your eye
could just give it a service & the once over, but scope to go a little crazy perhaps
though unsure how the ETU will hold up and being bespoke I'd keep it as is tbh
than build it with more snap & stress
anyway - hope the clip gives you a clue what MIGHT be inside