Here's the story on both:
Got it in 1999 to use in the World Cup. It is in excellent working condition and very good physical condition. When I stopped playing, I sent the gun into Indian Creek Designs (ICD) to have a new solenoid and wiring harness put in. Basically the guts are brand new, factory installed. The gun is electropneumatic with 4 firing modes (semi, 3 shot burst, 6 shot burst, and full auto). You can also set the dwell to dial the gun in exactly like you want it. The trigger was worked on by Planet Paintball and it is litterally a hair trigger. You can blow on the thing and it will shoot ;) The trigger is adjustable through two allen screws for length of trigger pull. I also have the stock trigger included and an unused (unopened) parts kit for this gun... kinda shows how reliable it is. By the way, this gun is to be used only with high pressure air, no CO2. I have been thinking about selling this gun for a year now, wondering if I will play again. I finally realized after a year of no action it is time to find it a home.
You already know about how a mag works. Just like the Defiant, I sent it in right after I quit playing and had it overhauled by AGD. The gun comes with everything pictured above, plus the stock valve body and a velocity lock.