Ammo-Safe Inc. has developed a new line of firearm safety devices that not only render weapons safe, but provide immediate visual verification of safety. The device consists of a caliber-sized plastic chamber blocker with a bright flexible strip that extends out of the barrel to give the immediate visual indication of safety. Ammo-SafeTM Chamber Blockers require no disassembly or mechanical alteration of the firearm, and allow the weapon to be dry fired, cycled and holstered. Ammo-Safe Chamber Blockers are ideal for training and instruction, storage, display and for visually safe transport of firearms anywhere.