looks like a colt :O

Nice. 

Выглядит красиво, но тут не любят, когда цветов дофига. Пробуй палитры меньше. 

Good looking gun for your first pixel job mate.

Less colours and some colourful spec/amb lights here and there and it would blow me away.

20 colors here =)

I know there are many colors, but this is my first pixel art. Thanks for the tips.

30 colors seems like a lot for this. Try to take a few colors out, some of them you don't even notice zoomed out.

Thank you for comment. Yes, the handle looks very bright.

Nice magnum. The color for the handle is so-so but overall nice job!