I got this gun about 2 years ago and wasn't overly satisfied with it. It was ok when I got it, good range and such. The scope was a pain to get adjusted but it works well. Then for some reason the trigger kept locking the backward position after a shot. Then without know I would cycle the bolt and on the way back, the force of the spring launched the bolt forward. This whole thing started happening about a year after I got it. I took it apart and found a pin that kept the trigger on its pivot point had slid out of place because it was too short. Not only that, the Sears were just eaten up by the pressure of that spring. And that spring is just too powerful for the build of this gun. I wouldn't recommend this gun unless you don't plan on actually using it. Fun while it lasted, but I didn't last very long.
-External built quality is amazing, best I've ever seen
-Scope works well, now use it on my M16
-Soft and short trigger pull (while it lasts)
-High velocity (could be a con based on your field)
-Spare magazines are dirt cheap ($8). Get the Echo 1 M28 magazines.
-Inconsistancy; becomes inaccurate after about 90 to 100 yards
-Hop up is a joke
-no aftermarket parts; no upgrades
-Bolt is hard to pull back, and I'm a regular weight lifter. NOT RECOMMENDED FOR YOUNGER KIDS.