The barrel of this product is 416 stainless steel bull contour. It is 20 inches. The barrel is hardened to 26-32 rc. Besides, it is stress relieving. The chamber of this AR-10 20” stainless steel bull is 308 Winchester.
Its twist is 1-10 RH button rifled. It comes with a crowned target. It is also spiral fluted. Current build AR-10 kits come with a 936 stainless steel low profile gas setup. The gas tube is of rifle length. Speaking of the A3 flat top upper receiver, it is created from solid billet 6000 series aluminum. Dust cover is installed. So is forward assist. The hardcoat is anodized. It is black. These AR-10 parts kits include rifle length 15” MLOK free float handguards. They are made from aluminum that is of aircraft grade. All details of this AR-10 308 20” stainless steel bull spiral fluted tactical upper assembly were manufactured in the United States of America. The product under consideration is DPMS compatible. Do not forget that this AR-10 tool kit does not include the Charging Handle or BCG. You can order all the additional tools on our website. Check it out for more information.