Legendary Breaker 12G
from the Biker Collection
The Apex is a gift to Rust from his compadre - The Mechanic. Rust would often run out of shotgun shells and just beat the living crap out of people. So his beloved bringer of death - the Breaker shotgun - got some neat modifications. Thusly creating the Apex. In this way, the amount of shotgun shells isn't an issue.