The Mini Rig™ Quartz Bucket was designed by MJ Arsenal for use with any of their mini rigs. Whether you own the Atlas, Hydra, Jammer, Royale or Ursa Mini Rig, this replacement quartz bucket is a solid backup to have on hand. Constructed from thick quartz and featuring a ground glass connection, expect pure flavor from your concentrates when using this replacement bucket with any MJ Arsenal Mini Rig. Keep your arsenal prepared for anything.