Bolt Catch roll pin...Just flush OK?

[c good]

Building my first. Should the bolt catch roll pin be pressed in (with a punch) past flush (driving pin in from the rear) or is just flush with back of rear lug through which the pin goes OK? I didn't know if it needs to be pressed in to have equal amounts of pin pressed into lugs on front and rear. I hope this makes sense. Thanks for any input. c good
P.S. I'm using the how to build lower intructions on the AR-15.com sight. It does not state how far to drive in the pin.

[ar15barrels]

As long as it's not sticking out the front OR the rear, it's fine.
Perfectly flush to the front or the rear, or somewhere in between, not going to matter...

[c good]

Thanks for the prompt reply Randall! So far so good.....to be continued....c good