As one of the characters of RWBY and one member of Team JNPR, Ren is calm and quiet young boy who has long black hair he wears some into a pigtail at back with a magenta highlight on the lef side of his head. He wears green Eastern style clothes in the form of diagonally buttoned tailcoat with long sleeves, and light pants. Ren is a capable fighter; hence he holds a pair of greem automatic pistols named StormFlower.
So, if you are searching for some less overly done anime boys who has black hair and simple costume with noticeable weapons, give RWBY Team JNPR Lie Ren cosplay a try.