AR-15 or AK-47

Answer 1

Get both!

It all comes down to personal preference. Both are fine firearms, in my experience.

The Kalashnikov,and all it's variants,are selective fire assault rifles(unless you are talking about the semi-automatic civilian versions in the U.S).

The AK-47 and it's different variants are built cheaply and ruggedly by many Russian,Asian and Now Middle Eastern manufactures,so quality varies as well.But generally speaking,the Genuine AK-47 is a reliable,rugged weapon.It fires the intermediate 7.62x39mm cartridge. Later versions like the AK-74 and Type 81 fire the 5.45x39mm,which was the Soviet Union's answer to the U.S. and other NATO nations switching to the 5.56 NATO cartridge. It's operated from a right-handled cocking lever,which can be very irritating for left-handed people.It's stock usually comprises of wood,and stamped metal.It's barrel has 6-right-hand grooves for rifling.Some newer or customized models have composite stocks.It's sights go out to 300m,but they are very low to the rifle's profile,and thus are harder and slower to use.Norinco has released models with 3-5x9 red-dot sights to compensate for this,and it can come in shorter paratrooper models,with folding and collapsing stocks.

The AR-15 is a lightweight, magazine-fed, gas-operated, air-cooled, shoulder-fired modular weapon system, primarily manufactured by Colt and several other companies. As with the AK-47, quality varies with each manufacturer. This weapon fires both the .223 Remington cartridge and the 5.56 NATO cartridge, depending on the lead in the chamber (if the lead is longer to accommodate the higher pressures generated by the 5.56 NATO cartridge, the rifle will fire both; otherwise, it'll only fire .223 Remington ammunition reliably). It fires from either a 5, 10, 15, 20, 30, 40, 45, 90, or 100-round magazine, with the most common being either 10, 20, or 30-rounders. The rifle comes in many different configurations. The stock is either fixed (the A2 stock is 5/8ths of an inch longer than the A1 stock), or collapsible. The barrel comes in many different lengths 7.5 inches (AR pistols), 10 inches, 10.5 inches, 11.5 inches, 12.5 inches, 14.5 inches, 16 inches, 18 inches, 20 inches, and 24 inches. The list of possible configurations is too long to complete here; these are just some of the possibilities with the AR platform. The weakness in this platform is the feeding system; a defective magazine can cause feeding problems. AR-15s are best run with plenty of lubrication (CLP) on the bolt carrier to ensure the most reliable operation.

Both are very good,so get both!