I've never heard of an AEG person before, but I know you can find lots of snipers who are certified on the boards.
If you are looking for a Sniper RIFLE, then there are many possibilities out there. The M14, Armalite and G3 Series being some of the most prominant.
My personal recommendation is the TM M14 platform.
Certified Sniper Clinic Instructor and Counter Sniper
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