He's new!  The 3 3/4-inch K-2SO (Rogue One) has a cool grappling hook accessory, but no blaster like his 6-inch counterpart.   What does he have in the movie?  I have no idea, I haven't seen it.  But I have seen the figure, and the figure's ball-and-socket joints give him a good range of motion.  And less stability.  But he looks cool.  Read on!