These are the copper mech mods I own, all clones:
Left to right:
Stingray X
- Copper body wrapped with stainless steel
- Houses single 18650/18500/18350
- Comes with Hybrid Adapter
- Magnetic Firing Button
- Floating 510 Pin
- Silver Plated copper contacts
Emma Mod
- Houses single 18650/18500/18350
- Spring loaded firing button
- Flotaing 510 Pin
- Copper Contacts
Tres Evo
- Houses single 18650/18500/18350 (3 Tubes)
- Spring loaded firing button
- Floating 510 Pin
- Copper contacts