Tactical Realism gets to unbox and go over the features of the fully licensed Umarex Glock 17 Gen 4 GBB Pistol in this video... "For today's video I unbox the Umarex/Elite Force Glock 17 Gen 4 gas-blowback airsoft pistol that is OEMed by VFC. This gun runs on green gas or propane. Airsoft guns open up a realm of possibilities for reloads and training video's that wouldn't be possible with a nerf blaster. Don't worry, I'll still be doing Nerf Tactical Reloads."