The AR-10 is developed in 1955 and manufactured by ArmaLite, and it is considered to be the grandfather of all modern sporting rifles. The AR10, as a predecessor of AR-15, offers you more power due to the bigger size of the caliber. The standard sizes of AR10 calibers are .308 / 7.62 mm and 6.5 Creedmoor. Nowadays, we have various manufacturers that produce rifles based on the AR-10 platform. The main feature of these rifles is the fact that they are fully customizable. You can always equip your AR10 with a scope and get more efficiency. If you are a long-distance shooter or a hunter you should consider buying the AR-10.