MDT Bolt Knob Threaded Universal Tactical Grey. These Bolt Handles by MDT provide a comfortable and confident grip with anti-slip foam friction pads that ensure a tight fit to your bolt handle. This MDT Rifle Bolt Knob Upgrade is built tough to withstand your rifle is in a firefight and ready for action. With an ambidextrous design you can sling it like a club with your new bolt knob. Plus there's a universal 5/16-24 thread that fits most rifles with a 5/16-24 threaded barrel. Snag your MDT Maximus Bolt Knob for a comfortable bolt knob that will improve your tactical awareness and shooting experience while wielding your weapon. Specifications for MDT Bolt Knob - Threaded: Manufacturer: MDT Fabric/Material: Glass Filled Polypropylene/Polymer Gun Make: Universal Gun Model: Universal Hand: Ambidextrous Country of Origin: Canada Features of MDT Bolt Knob - Threaded Glass filled polypropylene clamshell clamps over existing bolt handle - no bolt modification needed Available for: Rem700 - Right Handed Tikka T3 Howa Ruger American Centerfire Savage 110not compatible with savage tactical or axis bolt knobs) and a universal 5/16-24 thread Anti-slip foam friction pads to help provide tight fit Protouch soft touch polymer sleeve with lock in place installation Package Contents: MDT Bolt Knob - Threaded All hardware What firearm models does the manufacturer say MDT Bolt Knob - Threaded is compatible with? The manufacturer suggests that MDT Bolt Knob - Threaded is compatible with UniversalMDT 105339-GRY: Bolt Knob Threaded Universal Tactical Grey