From someone who has spent about £5k this year in the search of the perfect, long range airsoft gun... TM MWS... ill explain my setup and then my reasoning behind my choice.
TM mws (m4 gbbr)
orga 410mm 6.05mm barrel
maple leaf 60D decepticon bucking
maple leaf i key
NPAS
asg/Geoff’s .36-.40
Rangefinder confirmed 81m on a 2ft square target at 392fps
For long range, gas guns work best because of joule creep. It chrono’s at 392fps in a nice warm house on .2’s but it can happily throw really heavy weight BB’s that AEG’s just can’t do because of the way they work.
The key is consistency. You need a heavy bb and you need a consistent FPS (Within 10fps). The Mauri fits the role perfectly. It’s very gas efficient, very consistent and very reliable, even in cold weather. You could hpa tap the mags for even more consistency, but I have never found the need.
Ive tried aeg dmr’s and if you can have a 100fps advantage over assault rifles (450 FPS) then it’s doable. But at 400fps, the extra 50fps isn’t giving you anywhere near enough extra range to justify the limitations. To give an example, I had a psg1 with £1k worth of parts on it. Didn’t shoot half as good as the mws for half of the price