re: Official AR-15 thread

quote:

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Most handguards now come with a wrench for the barrel nut.

You will want a torque wrench.
Punch set
roll pin punch set
castle nut wrench

This is not needed but will save yourself a major headache.
Wheeler AR Pivot/Roll Pin Install Tool - Delta Series

I feel like I'm missing some stuff but I assume you have a hammer and allen wrench set.

ETA:

this is the best upper vise block I've seen. It's not necessary, but makes this much easier:

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Great, thanks. I've already got a Wheeler torque wrench, so I'll order a castle nut wrench and a Wheeler roll pin punch set. I think the upper comes complete but I'll check the vice block if it's not.