Normally no, but you could in 5th essence take 'Hand of Master' to list your in-arm build smashfist as unarmed weapon for your style....which can be freaking awesome really.<br/><br/>Although up to ST decide will smashfist be allowed or not as five-dragon style allows use of spears, swords and unarmed fists/kicks with it. It's universal 'soldier' martial art and thus smashfist should be allowed like a unarmed strike aid.