Brand new, unfired Rock River Arms CAR A4 complete upper. This is a factory built 5.56 upper and includes the bolt carrier group and charging handle. 16Ē 1/9 chrome moly barrel (not chrome lined) and carbine length gas system. I bought this upper a while back for a future build and itís been in my safe ever since. Asking $525.00 OBO and itís in Granbury. Iím selling it to fund another upper, so any trade possibilities would have to be in my favor.