OK - here is the breakdown on this........
It is a SRC Dragon despite being lead to think it was a good buy with metal gearbox
I bought this:
https://bbguns4less.co.uk/products/SRC-M4A-E-OG-The-Dragon.html
BOLLOX - it is a PLASTIC gearbox with METAL thin crappy gears
doesn't even have plastic bushings let alone metal bushings or bearings
The gears just spun on holes in the flexible plastic gearbox
It didn't last very long and threads stripped on the gearbox as it was lame ar$e plastic
when I attemped to strip it down and investigate why this pile of crap broke - easy it is crap
Now some Dragon's I have heard do have the mk2 metal SRC gearbox but they are probably the £100 ones
but even that is $hit - plastic green bushings (6mm btw) - so not even metal bushings or bearings
at last metal - but it still pi$$ poor metal
On top of that my dragon had a plastic outer barrel which was f*cking BENT !!!!!
It always shot right and had to swing the rear sight almost to the left limit to get it kinda firing straight - ish where I was aiming
Oh and another thing - these SRC's are "slightly" qwirky in the way their receivers and or gearbox's are not quite 101% TM
compatible - SRC goes in there but try and shove in another box or replace the receiver and it don't quite all align up 101%
I could go on but you might be getting the picture
like we say the G&G's REALLY are money well spent