The bull barreled rifle is noted for it’s incredible accuracy and rightly so. This kit comes with your choice of hi-rise or standard flattop upper, freefloat hand guards, and a picatinny gas block. Ultra Match barrel is available in 1x8 or 1x10 twist, and in 16 “, 20”, 22”, and 24” lengths. Comes with everything to turn your lower receiver into one of the most accurate rifles.