m4a1 crystal or m4a1 custom?also sniping?

actually both m4a1 are same .same power,accuracy,recoil etc the have not something differnt.but m4a1 crystal has better style .
About snipers now
awm and dsr-1 are best snipers in game.if i were you i would keep both snipers cause are very good and when you feel bored with awm you play with dsr-1 and the reversed.

m4 custom probably accurate than crystal but crystal do damage more i think

crystal xD s

Depends on what kind of games you prefer

I think a new m4a1-E is nice because this gun is new and no more people have this weapon