This AR-15 pistol build kit comes with a 10.5" barrel and a upper chambered in 7.62x39. A pistol buffer tube assembly, lower parts kit and grip. Just add a lower receiver to complete your project.
-CALIFORNIA PROPOSITION 65 WARNING:-WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: www.P65Warnings.ca.gov