16" bull barreled AR-15 Upper

Bull Barreled Upper comes with 416 Stainless Steel Barrel, 1x8 or 1x10 Button RH Twist, Aluminum Knurled Free Float Tube, Picatinny Rail Gas Block, and A-3 Flat Top Forged upper receiver with T Marks.  ALL parts Made in the U.S.A.  This AR-15 Bull Barreled Upper is head spaced, and ready to mount to your lower receiver.  Once you have an assembled lower with the parts provided in the kit, and mount the upper,  this is an operational firearm 5.56 NATO.