>>27936485
bump

Literally buy any stock AR and change the grip, stock and rail.

>>27936498
i forgot to mention what you're talking about in the OP is not "building"

If you shop around on eBay and shit you can price one together for under 500

/k/ is going to be real mad at you for real stupid reasons.
long story short:
the lower is literally the least important part of the entire thing. it handles no stress whatsoever, you can save money here.
same thing with the grip, rail, stock - those all aren't going to be very important. Consider spending most of your money on a good barrelled upper reciever and then buy a PSA blemished lower. put both halves of the rifle together and buy the shit that doesn't matter slowly over time.
also ask this in an ar/g/

For shits and giggles I'll write it out for you... Feel free to change parts as you choose. I will also try to save money in order to include Optics under the $900 limit.

Part/ Price of part / Where you can buy it

1. Spikes Tactical lower - $130 LGS
2. Spikes Tactical upper - $105 Joeboboutfitters
3. Black hole Weaponry 16" Barrel - $190 Joeboboutfitters
4. Seekins Precision 12" BAR Quad Handguard - $130 JBO
5. Rock River Single stage LPK - $65 JBO
6. Mil Spec Carbine Kit - $35 JBO
7. Magpul MOE Stock - $35 JBO
Total so far $690

Just need gas block and gas tube, BUIS and Optic...

You're welcome

>>27936736
Or if he goes Anderson he'll save $280

http://www.aimsurplus.com/product.aspx?item=F1ANSL&name=Anderson+Manufacturing+AM15+Multi.+Cal.+Lower+Receiver&search=anderson

http://www.aimsurplus.com/product.aspx?item=XANA3&name=Anderson+Manufacturing+AR+A3+Stripped+Upper&search=anderson
http://www.aimsurplus.com/product.aspx?item=XANLPK&name=Anderson+Manufacturing+AR+Lower+Receiver+Parts+Kit&search=anderson

http://www.aimsurplus.com/product.aspx?item=XANB16M4&name=Anderson+Manufacturing+16+inch+M4+.223%2f5.56+Barrel&search=anderson

http://www.aimsurplus.com/product.aspx?item=XANAMUPK&name=Anderson+Upper+Completion+Kit&search=anderson

>>27936763
True, I initially started off that route using Anderson Manufacturing parts.
I wouldn't recommend he get a cheap barrel. $100 more for a Black Hole Weaponry barrel is reasonable to me.

I didn't realize the Seekins Handguards were so cheap on Joeboboutfitters

>>27936736

Joint Bone Orders?

>>27936854
Sorry no, I got lazy and started writing JBO instead of writing out Joeboboutfitters.

Here's the link... they have great deals from time to time.

http://www.joeboboutfitters.com/

>>27936503
Not OP but spoonfeed me please