I recently bought a few of these on sale, and they’re brand new in the box, never used. I’ve attached a video showing a fix for a spring issue. I replaced the spring on my range gun, and it works like a charm! But, I wouldn’t recommend using it for self-defense or in competitions. Haha, I guess I’m talking myself out of a sale, but for range gun use, it’s fantastic! I fold it up and throw it in my backpack, and I’m off to the range.