i looked for a cheap beater ar and seen the plum crazy poly lower for $125 for a complete lower. and a Red x upper 16 and 20 in barrrels with differnet twist flat top full floating upper. complete ar 15 with one magpul 20 and 30 rnd mags for $631.00 to my ffl. Im not looking for highest quailty just something that is something fun to shoot and low mainteince. what do you guys think