KEY WEAKNESSES: the outer body and the inner body have spaces that are incredibly hard to get paint out of. sanding down of the halo and other hoppers will be required to fit in feed neck. (force it in there once or twice and it scrapes off enough plastic to fit perfectly) battery is loose and wobbles around but can be easily fixed, instructions with the marker are very basic and the full 29 page manual will need to be downloaded for anyone newer to paintball. i got the black on black and the only problem with the colors is the inner black appears purple. (it really is not but compared to the other black it seems that way) the velocity ajustment is under the foregrip, making a drop foward and iffy decetion because velocity changing would be a challenge.
THE GOOD REVIEW: eos is light and compact. stock out of the box you will never chop a ball (unless using wrong freak insert) Because of wonderfull fire bolt. clamping feed neck, interchangeable valve chambers allow for diffrent styles of play, as with the ajustable dwell setting ( how long the bolt stays foward when shot). i could clean this gun in under a minuit due to the bolt out back system. The eos is quiet (when using HPA) and accurate. the trigger has no side to side movement and is fully ajustable. quiet and accurate. has wonderfull slots for fingers. takes some getting useto but is wonderful and relyable once set up.
For anyone upgrading from a lower quality marker or is looking for the new features in the newer models of higher end markers. wonderful marker.