What kind of AR is this and what's it worth?
Looks like an ATI Omni Hybrid MAXX limited. Probably worth around $350-$400. I'd skip it though cuz polymer.
AR-15 parts kits can be had, complete gun minus lower and magazine, for $300-$430 on the cheap end
This kit is $400:
http://palmettostatearmory.com/psa-16-mid-length-5-56-nato-1-8-stainless-13-5-lightweight-m-lok-moe-freedom-rifle-kit.html
Palmetto State Armory has a free floating .308 caliber AR-10 type rifle for $700, too.
Why you would pay tons of money for an AR-15 these days, I don't know. .308 really is faaaaar better.
>>34671025
Begone, knave.
>>34670996
This is the correct answer, although the polymer hate is a bit of a meme. That said aluminum > poly.