Hey everyone, new to the forum. I just picked up 527 Carbine in 7.62x39 and love it so far after my one trip to the range today. I took 20 shots and my groupings were excellent at 50 yards. But the rifle is shooting 3" low for the sight picture I use. Now, I read the manual on the CZ sight before I bought the gun & it said you had to replace the front sight with a different number sight. After a little research, I found this is not the case for the new fiber optic sight which I have. I noticed two allen screws, but how does raising (or lowering) work? The 557 manual which has the FO sights says "the elevation adjustment of the front sight is carried out by means of the two front screws" which isn't much help. Can anyone give me any direction on this instead of trying this willy nilly?