Threaded bolt catch - Aero Precision M4E1 Threaded Bolt Catch Pin

Okay so this is a strange one. I'm not a huge fan of the threaded bolt catch. I had it walk out on me. I think the OG roll pin was more secure. That being said add some blue or red lock tight depending on your confidence and it'll never walk out. Product gets 5 stars because it works as designed. However buyer beware these things need some extra security.