Lego minifig compatible Custom BrickArms XBR3 Battle Rifle. Designed in the secret labs of the Earth Defense, the XBR3 is the third revision of the Experimental Battle Rifle program in ongoing development. Rushed into service and delivered into the eager hands of out world minifig marines defending the remote planets, it has proven itself to be a capable addition to any minifig's arsenal. Also available in transparent red at half price so it can be painted whatever colour you want.