Is the ar15 a gas tube or piston? I've carried an m16 and I'm NOT a fan. Id rather have carryied a bolt action 308, or a PIG. But betwen those 2 I would go with the AK. Its just so much more relibable... but the ar platform is so much more populer and ammo is so easy to get. If you go with an AR first make sure its a gas piston and second make sure its chamberd in 5.56mm so you can shoot both 556 and 223. Thrid make sure you get quality and not a cheap rifle. Or go AK.... it realy comes down to persanl preferance.

Your welcom for the confusion!