Why avoid G&G? I was looking to buy one myself.
G&G's are some of the best Starter M4's out there - I highly recommend them (honest)
HOWEVER - not all G&G's I recommend with the same level of enthusiasm
Their std mosfets in their TopTech stuff years ago where supposed to be $hite
Their DSG FIreHawk was designed and launched by some crack heads (no semi on a CQB gun - wtf ?)
The ETU first launched on M4's - the SR range then Predator/Hog stuff and people started to have issues
The battery recommended in manual - first said 7.4v or 9.6v but even some 9.6v didn't work too great
Then some manuals dropped the 7.4v and suggested 9.6v and/or 11.1v but modest 20c lipo
still some people where having issues with 9.6v
Also remember the G&G crane Stock GOS-V3 looks nice but isn't ultra spacious so range of 11.1v lipo is limited
Then if you do get the thing running it still may not last, the tiny switches are not ultra industrial heavy duty
Many have replaced the picky 3rnd burst mosfet and then found later on the ETU switch inside the box craps out
G&G & some retailers were slow to respond and various stories or excuses were issued
Some people said G&G would replace any faulty 3rnd burst mosfets but retailers didn't know anything about it
It was a bloody disaster all round with the 3rnd mosfet low voltage cutting out on good batteries etc....
The ETU is the actual trigger unit & in a AKit will be a v3 switch and it might be a bit better than the first v2's in M4's
BUT still uses the same iffy problematic 3rnd burst unit
Now don't get me wrong - they might have improved the 3rnd mosfet unit which is where the main issue was
(just said the voltage cut out was too low and said nope not firing no more = why you need 11.1v not 9.6v)
BUT BUT BUT
The new G&G PDW 15 CQB HoneyBadger model recently launched doesn't have the ETU
(draw your own conclusion as to why they didn't risk fitting this with superduper ETU)
Also they are making a new smaller ETU2 & revised 3rnd + 5rnd burst mosfet which is hopefully better
Let's face it, can't be no f*cking worse than the original 3rnd mosfet unit
Look I like G&G's - honest
but if something is $hit I will rip it to bits - I'm no fanboy if something is crap
My own FFR A2 crapped out so I replaced it all with regular trigger & runs sweet on all volts
Their TopTech stuff is a bit dear I feel & people like Krytac have overtook or made big inroads in the high/mid range
Their Starter stuff is great but their new innovations most certainly suck
There MARS system seems to have fallen on its ar$e
They will revise the v2's with screws on the correct side eventually they say this year (probably late/next year)
They make a big deal about new v2's having o-ring nozzles - ffs why not fit them anyway
Still no full work in progress on many innovations just CGI animations
AND what super innovations are out there are f*cking crap at best
apart from that they doing great bringing new stuff to the market
But if you wanna buy one then yeah go for it - you might get lucky
just letting ya know the ETU guns so far have had many reliability issues
They might have fixed them - but I'm still unsure if I'd buy another ETU G&G
(well no - I can honestly say I wouldn't unless it was going to be a silly price and just rip the thing out asap)