Leaky gas airsoft magazines are a sure thing. At some point, it will happen, even if you own our exhilarating HK UMP GBB sub machine gun. What happens when the inevitable occurs is entirely up to you. You can either toss that salvageable magazine in the trash (don't you dare!) or go pick up one of our HK UMP GBB Mag Rebuild Kits. Fix your busted UMP magazine at a fraction of the cost to replace it with a brand new one. Adding an HK UMP GBB Mag Rebuild Kit to your toolbox is most certainly a good idea.
- OEM replacement parts for the H&K UMP 45 Airsoft Magazine (SKU:
- Replace worn out or broken parts
- Compatible with H&K UMP 45 GBB Airsoft SMG magazines by VFC
- Includes all the parts needed to rebuild one (1) UMP 45 magazine
- Rebuild kit is ideal for restoring old magazines into like new condition
- Great to have on hand during longer airsoft events