If it's the Arsenal 2-stage trigger, they suck. Remove the hammer and file off the ridge that the trigger hook engages. Then give that whole area a light polishing. You'll end up with a very nice single stage trigger, although "crisp" is tough with a standard AK trigger. If that doesn't do it for ya, the Red Star Arms adjustable trigger is a nice upgrade.
It is a single stage and came polished. Specifically it is the long take up and lack of crisp break that I'm finding less then desirable. Does the Red Star Arms address the issues?