It's an Iron sight, F class and FTR class match. Here is the link for a better description- http://www.scarfg.org/twiki/pub/Main/Rifle/Mid-Range__F-Class,_July_27,_2014.pdf I'm here to ask what exactly they mean by iron sight. Am I allowed to use any iron sighted rifle that i deem suitable for the job? I looked into the NRA HP match handbook and it doesn't specify, it only covers match rifles, service rifles, F class and FTR. I'd like to use my Finn M39 for the match but don't want to show up to be turned away. any help would be great. I'm going to give them a call tomorrow.