The Umarex Glock 17 Gen 5 Gas Magazine is a fully licensed, first-party green gas magazine. This is compatible with both the CO2 and green gas versions of the Umarex Glock 17 Gen 5 MOS by SRC.

• First Party Green Gas Magazine
• 18 Round Capacity
• Compatible with Umarex (Elite Force) Glock 17 Gen 5 MOS Gas Airsoft Pistols by SRC