I havea 6.8mm model 1 sales upper receiver for an AR15.It has free floating handguards and comes with bolt and carrier group.It has an A2 style carry handle.16 in" barrel with a 1 in 9.5 twist.I have fired appx. 20 rounds through it. Shoots great. It also comes with a DPMS 25 round magazine and 180 rounds of ammo,half is remington, half tanner sports.I'll let it go for $675.