Grip it and rip it with the Hornady Rapid Rack, an empty chamber indicator that also operates as a load-assist device for those who prefer to keep their long gun ready with a fully charged magazine and a visibly empty chamber.image Simply insert the cartridge-shaped portion of the Rapid Rack into the chamber leaving the colored lever protruding from the gun's ejection port. Close the bolt and insert a loaded magazine (AR-15/10), or load the tubular magazine (select 12 gauge shotguns). The colored level visually displays an empty chamber. Grab the lever and pull straight back, allowing the Rapid Rack to fall to the ground so the fully charged bolt springs forward to feed a round into the chamber.