Could be better.

I enjoyed watching this small drawing though. :)

Traced, and barely worth the title of animation.

It's a good gun, and I'll give it that. Not the drawing, but the actual gun. But that's all I really can give it. It's not worth sticking in an animation for two reasons:

It's just a gun beign drawn. It's very, very short, and that's it.

You've never heard of curving lines. The only curves are on the premade circles, and the prevalence of straight lines is jarring.

Learn to curve lines and don't trace it. Then, stick the finished product in the Art portal. This shouldn't really be animated.

nice

good sketch good detail bad shading

Well then

Not bad, I liked it sort of. skillful drawing of a gun my friend.

Hmmm

Pretty good animation, decent shading. But there isn't much to it. If this is your first attempt at flash then I would say you definitely have a gift, keep it up, hope to see some improvements in the future.
I'm in a rather giving mood so 2/5 - 6/10. Maybe some sfx or further animation next time? :)