Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fantastic Sidearm!

Great gun, very powerful and horizontally accurate, you do have to judge for vertical accuracy when aiming down the sights though because the hop up system in this thing is very strong and causes a large arc when firing a bb.Another thing is that the orange safety cap at the tip of the barrel will get shot off due to the extreme hop-up system in this gun. But without the cap, the gun functions a bit better without it.All and all, this is a fantastic sidearm to use in the midst of battle, pretty durable, accurate and powerful! A must have!