I don't think nerf is a nerdy thing because it's fun to play and modding guns is awesome and for me it makes me forget all my other problems (school,people,etc).
That happens to be a design flaw of the breech system, when the dart-tooth retracts it tends to pull to head of the dart along with it, which in turn literally rips the head off the dart.
I had the same problem with my recon I used to have. I think Aimless is right