GBB model: KSC Glock 19 w/ Metal Slide and outer barrel. Highflow valves on mags. Upgraded recoil rod and spring.
Quantity and type of propellent used to date: 20+ cans green gas
Failures to date: none
Interesting history: Dropped once or twice during cqb. No longer own this GBB, but it was a workhorse.