How to replace the seals on an Umarex Glock 17 Gen 4 Air Gun

#airgun #umarex
After only 3 weeks of ownership, the seal on my Umarex glock 17 gen 4 was completely damaged and the gun would hiss constantly when a new co2 canister was loaded. In this video I show you how to replace the seals and all other serviceable parts of the magazine.

the screw unit and all parts for this gun can be obtained from www.spares.bagnallandkirkwood.co.uk