Check the listing for details. Low Profile Bolt Charging Handle For Ruger Mark III IV & Lite Racker Adapter. Color: Black, Condition: New. Listed at 16.35 USD. Low Profile Bolt Charging Handle Compatible with Ruger Mark III, IV, IV Lite. *Fits the OEM/factory bolt* Features: *Anti-rotation tabs on all corners. *Notches that line up with your bolt for ultimate reliability (most designs rely solely on screw pressure). *EASY installation thanks to custom design; allows for flexibility during install with maximum retention once installed. *Made of ultra lightweight reinforced polymer ensures bolt stays fully functional. *ALSO INCLUDES: screw, nut, washer, AND hex key wrench. EASY INSTALLATION: *First make sure the flat part of the charging handle lines up completely flat with rear of bolt.*Then insert the screw/nut/washer and tighten it down.**washer may be pre-installed** **This listing is only for the racking handle, screw + nut + washer, and hex key wrench. Any other items in the photos are for demonstration purposes only**