Purge Mods Upgraded Firing Cup 
Original Purge Mods replacement firing cup compatible with the Slam Piece, Stacked Piece, and Side Piece mechanical mods. 
To build, simply disassemble the bottom switch, swap out the copper cup for this upgraded silver cup, and reassemble. 
Optimized conductivity with a real silver construction. 
All sales final. Not eligible for returns or exchanges.