Abstract: A knife assembly includes a handle having a first and second handle portion each extending in spaced relationship with one another between a first and second knife end to define a working gap. A knife blade is pivotably secured to the second knife end and pivotable between a closed and engaged position. A switch button is interconnected to the handle for releasing the knife blade from the closed or engaged positions. A spacer is disposed within the working gap and extends between the first and second handle portions. A vial of tritium is housed within the switch button for allowing tritium produced by the tritium vial to be viewable by a user of the knife assembly.

Abstract: In some implementations, the device may include a body extending from a top portion to a bottom portion. In addition, the device may include at least one of said top portion or bottom portion defining a cavity. The device may include a tritium vial disposed in said cavity for allowing illumination produced by said tritium vial to be viewable by a user of the firearm.

Abstract: A knife assembly includes a handle having a first and second handle portion each extending in spaced relationship with one another between a first and second knife end to define a working gap. A knife blade is pivotably secured to the second knife end and pivotable between a closed and engaged position. A switch button is interconnected to the handle for releasing the knife blade from the closed or engaged positions. A spacer is disposed within the working gap and extends between the first and second handle portions. A vial of tritium is housed within the switch button for allowing tritium produced by the tritium vial to be viewable by a user of the knife assembly.

Abstract: A tritium housing includes a body extending from a first end to a second end to define a hollow extending therebetween. A lens is disposed adjacent and surrounded by the first end of the body and a sleeve is disposed within said hollow and extends from a closed end disposed adjacent the second end of the housing to an open end disposed adjacent the lens. A tritium vial is disposed within the sleeve to produce illumination visible through the lens. The body is comprised of a colored plastic material for magnifying and brightening the tritium illumination during a daylight use of the tritium housing.

Abstract: A safety selector for switching a firearm between at least two firing modes. The safety selector includes a cavity for placing a vial of tritium to provide a visual indication of the selected firing mode. A lock member extends through a portion of the firearm to regulate movement of a firing mechanism. A lever arm and a faceplate are connected to one end of the lock member to rotate the lock member between positions and an endcap is connected to the opposite end of the lock member to rotate therewith. At least one of the lever arm, the faceplate, and the endcap define the cavity for nesting the tritium vial. Another lever arm and faceplate may be located on the other side of the lock member for ambidextrous usage. The additional lever arm and/or faceplate may also include a cavity for nesting another tritium vial.