I've always thought of the 7.62x39mm round as a great multi-purpose cartridge.....30 caliber bullet, low recoil, PRICE, etc. But now I am in the market for a battle-quality black rifle. The last time I shot my friends S&W m&p 15, I was shocked that such a small caliber bullet would have that much recoil, not to mention the GIGANTIC size of the whole cartridge. Is there any good AR type rifles that utilize the 7.62x39? And which ones (out of the box) are the best for a inexpensive budget...or should I look for something in the popular .223 or .308? Please help school a guy...thanks!