once again, I agree with Lol, and others!
175lb.s? That is nothing for a 6' guy! NO 6 foot guy EVER had big arms at 175 lb.s. I mean I am a fairly lean 188 lb.s right now and my arms are barely over 15", AND arms are one of my best bodyparts! You need to work on OVERALL SIZE not just arms. If you slowly put on muscle and get to a lean 200 or more, then you will likely be much happier with your arms, as they will come up with the rest of your upper body.