I purchased a Canik 55 Stingray-C (black) on NYE (2015) with fixed sights and also ran into the same bleep problem. I absolutely love this firearm! Trigger pull and overall "feel" is excellent! BUT.... At about 10 yards, I was about a FOOT off! Insane! I'm no marksman, but I know for a fact that I'm not that bad of a shot!
At first, I went to Amazon and ordered up a set of CZ-75 sights. Thinking that should solve my issue. WRONG! The dovetail for the rear sight is wider than the sights I ordered. Returned those and back to square one.
I read that some of you guys contacted Century Arms and they sent out adjustable rear sights. But everything I read, it was still shooting a bit high (1-2") with it at its furthest down setting. Not good enough for me. I want my firearms to shoot true.
Tonight I stopped at a local gunsmith's shop, explained the issue, and he came up with a pretty good idea. Seeing that the front sight is so bleep low on these, he suggested tig-welding a glob on top of the front sight (approximately double the current height). Then, take it shooting and file down the slag until I get to the correct height. Once that is done, he'd put his finishing touches on it, and problem should be solved. He quoted me $60.00. Perfect! If all goes according to plan, this guy will be 100% satisfied with his Canik woes. Might be a while until all is complete, but I'll be sure to post the end results.