GUNS

>building my first rifle (ar-15)
>machined my own lower reciever
>about to purchase kit online from midway or palmetto
>have plenty of fabrication knowledge (machining/welding) but not a lot on guns

Questions:

1:7 vs.1:8 vs.1:9 barrel twist; which is best?
which parts are worth upgrading? BCG?
what barrel length is the most practical?
should I serialize the lower or leave it blank? does it matter? (not planning on selling)
anything I should know from someone who's made a full kit purchase online?
anything I should know as a newfag?

first this thread belongs on /k/, but 20" barrel and dont bother serializing, not sure abt much else bc im just an ak fag, Have fun!

check out spiketactical.com

twist rate depends on what size bullets and what barrelt length. Faster twist for shorter barrels/smaller bullets, slower twist for longer barrels/larger bullets.

personal opinion is 16" barrel, 1:9 twist, 55grain xm193 ammo

In “AMERICAN” states, building your own firearms is completely legal just make sure it falls into this criteria
>Atleast 16” barrel (18” for shotgun)
>atleast 26” in total length
>Non-Automatic (machine gun for dumbasses)
>no serial number required, just don’t sell it.

Invest in the highest quality barrel possible, the rest isn't very important other than lightening your trigger pull, there's a tool for that.

why do they even sell kits under 16" online then?

oh, and no parts are worth upgrading for recreational shooting. Trigger and bcg if you really want to throw money at it.

pistols

This is the correct answer. Barrel length has no significant accuracy between 16"-20"
Twist has a slight effect but again, not much unless your using a specific grain load.