A brief overview of the Army Armament Glock 17 Gen 4 GBB Pistol that is available at Gun Story in South Korea... "Hello! This is Gunstory. The product we introduce this time is the 'ARMY GLOCK17 GEN4 Handgun'. Manufactured with a metal slide and a lower frame made of polymer material, it was launched in three color models: black, two tone, DE, and this video was also produced by subscriber and user Liuyang himself."