The assembly includes the following tasks in our workshop :
- GBB DRUM loader disassembly
- Rear milling an tapp the new hole
- Installation of a US or EU no return valve fitting with thread locker
- Cleaning and reassembly
- Firing tests
- Drum magazine for TM G17 /18 & AAP01 Assassin replica
- Very fast charging of the spring via the integrated pull tab
- Capacity 350 bbs!
