Interesting concept, poor execution. - KNS Precision Bolt Catch Retaining Pin for the AR15/M16 w/3 C-Clip Retainers

3 rounds through my pistol and it went adios. Pretty bummed. First time out with this weapon and it failed after 3 rounds. They give you a couple of extra c-clips if your lucky enough to see that it went bye bye. I was not and so my pistol now has a roll pin installed in the bolt catch. Se la vie.