Just curious what is the best way to get bigger arms? Right now my muscle looks more raw and not really a solid form other than just mass. They are around 14.5 inches. I want atleast 16. I am a fairly small dude too. I weigh 160 and I am between 5'7" and 5'9". I am not fat though as you can probably tell by my arm size. I gained 20 pounds just from going to the gym. I just want to have bigger arms. I usually take the 80 and 90 bar and curl it as many times as I can.