Given the task definition and input, reply with output. In this task, you are given a public comment from online platforms. You are expected to classify the comment into two classes: insult and non-insult. Insult is any lanugage or act that is disrespectful or scornfully abusive.

Comment: It isn't so brittle that it can't be used to make a functioning lower. The stress is mostly on the upper receiver an AR15. Now I'm not saying it will last as long as a lower machined from billet aluminum, but it will last long enough to murder 50 people attending a concert.
Non-insult