here you are http://www.the-blueprints.com/
EDIT: Crollo, it doesn't one hit kill to the arms or legs, and it has no aimer, it only has 10 bullets per clip, it shoots incredibly slow, it costs a lot of money. M4 and AK-47 are much easier to aim as they aren't scoped views and have an insane rate of fire, the AK-47 will take anyone out in one hit to the head even with a helmet as the m4a1 will do about 90 damage and bink they player very hard meaning their aimer flies into the sky, and then you simply have to land another shot to take them out. Not to mention the AK-47 costs 2.5K which really makes it the greatest gun in the game, for its amazing power, accuracy, fire rate, large clip and reload speed.
Not to mention it'd be useless if it didn't kill people in one hit to the body because it'd just be inferior to the scout, which gives the player the fastest move speed in the game.