G&R Tactical's reliability package

AR/M4 AR General Discussion
1

Maybe Grant or anyone can answer this (probably really stupid) question for me.

I want to buy the reliability package from Grant’s site. Obviously the spring and and insert replace the ones I already have, but where does the Crane-O-Ring go? Yes, I know, I’m sure it sounds like a stupid question, but this is my first AR, so bear with me:D .

2

The o-ring is placed over the extractor spring.

3

OK, thanks. I figured it was as simple as that, but I had to ask anyway.