What is the best upper and lower for an AR15 build?

>>29715596
Rainier Arms has the goat roll mark

Yeah don't post a budget or a purpose for the rifle or anything like that.
That would be too helpful.

100% polymer for both
muh SOWC dude

$600-$2000

>>29715646
build your lower and buy a bcm upper

Forged upper and lower receivers are literally all the same. Just buy the cheapest ones you can find or one with the roll mark you like best.

>>29715596
Gibbz side charging upper on a Ares SCR lower and in .300 BLK.

File: the best.jpg (15KB, 320x240px) Image search: [Google]

15KB, 320x240px

>>29715596
>What is the best upper and lower for an AR15 build?

kac

You did say the best

>>29715846
If you're a califag, sure.

>>29715596
Drill your own upper out so you can into a spoopy ghost gun

>>29715894
>The best
>the best
>THE BEST

I just bought an adams arms moe piston carbine and mated it to a new colt M4 take off lower i bought for it. 900 bucks. Runs great

as long as lower is mil-spec, any will do.
If you want rollmark or other shit, you'll have to pay for it.

It really comes down to Barrel, BCG, and Trigger.
You definitely want good barrel and BCG.
You can get a regular trigger, but a middle-of-the-road trigger isn't really THAT much more compared to the higher end triggers people pay hundreds for.

>>29720293
I meant THAT much more in costs from a bottom barrel trigger. An ALG for $40 more.
Compared to people who will drop $200+ for a jizzelle