User blog comment:Xilinoc/Ch. 571 (Yachiru's gonna wreck it)/@comment-11446176-20140305130913/@comment-24282510-20140306072604

@Faceplant "Gin was able to activate and fight with Kamishini No Yari without having the blade glow or be massively long; he just dueled Ichigo with his sword in its ordinary small form, but at "Bankai level.""

Thing is that is Gins skikai/bankai it stays the same size/shape has its sealed stated. At any trait of fighting. But his zanpukato.