Have you ever wanted to unite the power of an AK-47 with the accuracy of an AR-15? Then the 7.62x39 AR upper receiver is the part for you! With a long history dating back to WWII, the 7.62x29 AR upper is one of the most popular and powerful cartridges in the world for AR-15 builds. This cartridge is built for real close-up power, carrying bigger bullets with a larger powder charge into its target within 300 yards. If you're hunting medium game at a relatively close range, then you'll want the 7.62x39. At Delta Team Tactical, we offer build kits either assembled or unassembled, so you don't have to struggle with building it yourself if you'd rather save yourself the headache. All of our parts are proudly made in the USA from the finest and strongest metals, built to be a part deserving of your perfect modern sporting rifle.