I am doing weight training and still gaining some muscles.. my arm size is 14inches and want to grow them to 17inches..

Karate or boxing should i take ?

I've seen my friend knock out 2 well know black belts and he's nothing special, so I'd chose boxing

As a fighter...

That question makes no sense. You should refocus your question.

But in general, boxing is better. But jujitsu is far superior.

For fighting - study everything you can for a long time to find out that no one wants to fight the guy who studied fighting for a long time.

If you're trying to build size by fighting...then put the protein shake down, drop the weights a couple of days a week and pick up a book, learn about your body, metabolism, and nutrition.

I don't think you should try to get into a fight but here we go. Karate they teach you the techniques on how to block kick and punch etc but it is meant to be used for non violence. Boxing is more like fighting because straight up fists and more like actual fighting. If you thought you would stick with it for several years karate would probably be better though.

What relevance does arm size have to do with anything? punching power comes from a boxers legs and boxing is much better if having to use it outside of boxing, but you shouldn't unless in self defense!

Karate

Boxing as you can't give someone a roundhouse kick to the head in jeans

Both r good but i think u should take boxing.

i personally have kicked a black belts *** in a street fight get them on the ground and knock their fecking lights out

I am doing weight training and still gaining some muscles.. my arm size is 14inches and want to grow them to 17inches..

Karate or boxing should i take ?