Magazine Umarex Glock 17 Gen5 MOS CO2

 This Umarex Glock 17 Gen5 MOS magazine has a magazine capacity of 18 BBs and it features an external follower that can be pulled down manually. That follower allows you to easily load the magazine with 6 mm BBs. Additionally, the Glock 17 Gen5 MOS magazine by Umarex has room for a CO2 capsule, which can be placed by sliding off the baseplate.