Rule of thumb for navy is you're not aloud anything thats visible in your no1s, assume its similar for army, so aslong as its not visible with long sleeves it should be ok.
Thanks, I'll ask someone at the recruitment place anyway but just wanted a rough idea.
your best off starting your application now because your in for a long process of waiting, running, waiting, running, thinking its never going to happen, running and waiting

, lazer dot>a nib for accuracy.