Show your love for Ruger even when you aren't out shooting with the Ruger bolt action ink pen. This pen is made of anodized aluminum. It uses Fisher Space Pen refills so you will never have to throw it out. Handle: 6061 Aluminum. Overall Length: 5.5 inch. Weight: 1.0 Handle Material: 6061 Aluminum Finish: Black Hard Anodized - Type 3 Weight: 1.0 ounce Pen Refill: Fisher Space Pen Black Ink Cartridge Bolt Action Pen