I just measured mine, only 14 1/2 cold, but pretty ripped. But I have very small joints and a small frame, so my arms appear the about the same size as my buddy's who has 17 inch arms, but a much bigger frame. I just started my cycle, so I'm shooting for 16" in about 2 months.
My arms measured a measly 11" when I first started training 2 years ago, so I'm happy with what I got now, but always shooting for more.