How to make performance better (DD)/spare parts

[Djstorm100]

Hey guys, I'm new to ARs when it comes to do's,don'ts- parts- brands etc. I've been reading the stickys like crazy.

I recently got a Daniel Defense (DD) v5 with ecotech 512 and BUIS

I was wondering 2 things.

1) how can I make my Daniel defense better? I love the rifle, thinking about maybe getting one stage trigger for ligther pull.

Also what does the bolt upgrade with the oring and heavier spring for the extractor do?


2) I want to get a spare parts kit, what parts should I really focus on?

Also when it comes to lube I want something that will last! Not to turn this in to VS. thread but is motor oil as good as everyone saids? Been looking at slp2000 ewl.

Thanks!