Why pay $1200 for used when you can have new for $1039?
BUSHMASTER VARMINTER 5.56 FACTORY NEW : Semi Auto Rifles at GunBroker.com
Or if you want a nice used one here it is for $950
Bushmaster Varminter,.223 caliber rifle : Semi Auto Rifles at GunBroker.com
And so you know. I've got an Armalite match carbine with triple lapped stainless 16in barrel that will shoot 2" at 200yds. A gun with a 24' barrel better be stacking rnds thru the same hole at 100yds and under 1 moa at 200 to be comsidered a good long distance gun. 2 inches at 200 is 6 inches or more at 600yds which will have you missing quite a bit.