The TVL Copper Colt 45 is a hybrid single 18650 Competition Mechanical Mod. It is available in Pure 99.99% Terillium Copper or Oxygen Free Naval Standard Brass. The Top Deck is 24mm. The button uses a 35 pound spring. A magnetic option will be available in the first part of 2016. The Colored Versions are limited editions which are released on a regular basis. Custom engraving is available on Request at an additional cost.