the tar 21 is overall a very good gun internally and externally. it has a very unique design to the gun that makes it very catchy. i sold my whole arsenal for the ares tar 21 and i dont regret it.
very fast Rate Of Fire
Hop-up works great
positive licks when switching from safe-semi-auto
and Great accuracy.
the mars red dot scope has ALOT of paralex.(the dot stays in the middle of the sight, not where your aiming at)
i perfer to replace the MARS with a eotech 512, it has no paralex.
check out this vid to see what i mean--_ http://www.youtube.com/watch?v=ReopOH_YqEU
Rating: [4 of 5 Stars!]