Its interesting but the force is really disproportionate. The most evident example is when he flicks the cover closed. There is waaay to much power in flicking a tiny little piece of metal. it must weigh about as much as 3 or 4 quarters, so why would moving it make the heavy flamethrower react so much? Also, the weapon comes down to quickly. I would recommend having him visibly grab the handle as it comes down a bit slower, and then make the weapon sink below the origin a little bit and come back up. This is 90% effective (if done right) at making the weapon look heavier. I'm not positive, but it looks like hes screwing/twisting the tank into place after he gets it into position? I like that little touch, but you could take steps to make it more evident. The entire thing moves strangely when he pulls out the old tank. I haven't really got a suggestion on how it should move, but i would recommend messing with it a bit until it looks more natural. You might consider making him press the button with a different finger. The index finger "poke" looks a bit clumsy. I would probably make him use the thumb. Overall, I do like the animation's timing and flow though. Keep working on it. + rep.