I finally got a chance on Friday to take my newest toy out to the range. I fired over 300 rounds of Blazer and Winchester Super X without a malfunction of any kind. Once I got my red dot zeroed in, she was very accurate with good groups at 50 yards using bench rest and off hand. This is definitely a fun and cheap gun to shoot. She handles well but the gun seems a little nose-heavy due to the light standard butt stock. I replaced mine with a heavier collapsible stock and the balance is much better. I have also heard of folks attaching a real HK MP-5 stock but this requires a little Dremel work. The standard iron sights are ok but not a good as real HK sights. I strongly suggest using a red dot or reflex sight for greater accuracy unless you want to replace the rear sight with a real HK type. If you are looking for a nice, cool-looking plinker, I do not think you can go wrong with the GSG-5. Btw, the small group on the left was before I sighted in.