The Tandemkross Challenger is a replacement bolt knob for the Ruger American Gen II rifle, finished in black. It gives a larger, easier-to-grab knob than the factory piece, which helps with fast, positive bolt manipulation. It is a simple upgrade for hunters and range shooters.
- Brand: Tandemkross
- Fits: Ruger American Gen II
- Model: Challenger
- Type: bolt knob
- Color: black
- Manufacturer part #: TK42N0580BLK1
- UPC: 657768472664
