Ok, I've had my Arsenal SGL-21 for 2 weeks now. I did a final zero on the iron sights and I've added a K-var detachable scope mount with an Aimpoint 9000sc for the primary optic and might add a magnified scope later. So far I've cycle 1400 rounds through it in the course of 3 range sessions. All I can say is WOW those Russian build a good rifle. My accuracy has been between 3-4 moa with the Red Dot Aimpoint. My ammo was Brown Bear Russian made. Maybe with a magnified scope I could get a little better grouping but wouldn't expect any miracles. I've got quite a few guns including a couple AR's in 7.62 and 5.56 but this Arsenal is the one gun that I will never, ever give up. I rarely sell one of my guns and I plan on keeping my smooth shooting AR's forever (god willing I don't fall on REALLY hard times) but if I had to choose just one for the rest of my life it would be this Arsenal in my hand hard times or not. I never thought I would say that about an AK but I'm totally sold. I fired it from the bench, rapid fire mag dumps, and from a number of different positions and it just flat runs like a dirty rotten dog.