I've got a Olympic and its a shooter. Bought it from a co-worker who was the original owner. He never had any issues with it and I shot it with him before buying it. All of the parts are mil-spec. I wanted a flattop upper for mine, so I got a GG&G Dominator upper and guess what.......it fit like a glove. It shoots great. Another co-worker bought a Olympic from Bradis and hasn't had a single problem from his either. After seeing my new upper, he bought one too. I paid more for the upper than I did for the whole gun! I use 30 rd. GI mags and P-Mags without a problem. Buy one and you won't be disapointed.