I recently got a KA m4 and the bolt catch started to not release. The leg on the catch has started slipping off the lever to release the bolt. I was told that it I played with it too much it would do that as its not designed to use it that often. But I think it would last longer then 5 times. It looks like if the leg on the catch was just a mm longer it wouldnt slip off. Is there any remedy for the issue or do I just need to get a new catch and leave it alone?