The Hornady Lock-N-Load® Bolt Ball (Model: 99123) is a non-permanent slip-on rifle bolt knob designed to adapt standard factory round bolt handles into an oversized, high-leverage grip. Made from a dense, flexible black synthetic compound, this accessory friction-fits directly over existing factory bolt knobs without requiring gunsmithing, drilling, or threading. By enlarging the bolt handle surface, it increases purchase for faster cycling and improved manipulation across all weather conditions.

Key Features

• Tool-Free Installation: Push-on friction-fit design installs securely over factory handles without modifying the underlying metalwork.
• Enhanced Leverage: Enlarges the bolt profile to provide greater surface area and mechanical purchase for smoother, faster cycling.
• All-Weather Grip: Flexible synthetic compound delivers a secure tactile surface for operating rifle actions with gloved or wet hands.
• Calibre-Independent: Passive mechanical accessory compatible with standard bolt-action rifles featuring factory round knob geometry.

Product Specifications

• Brand: Hornady
• Model / MPN: 99123
• Category: Slip-on rifle bolt knob
• Material: Dense, flexible synthetic compound / hard rubber
• Colour / Finish: Black
• Interface: Push-on friction fit
• Power Requirements: None (purely mechanical)
• Compatibility: Standard spherical/round factory rifle bolt handles

Who is the Hornady Lock-N-Load Bolt Ball for?

• Cold-weather field hunters — requires an oversized gripping surface to reliably grasp and cycle standard spherical/round bolt handles while wearing thick, bulky winter gloves.
• Target shooters — provides an enlarged tactical-style profile over factory round bolt handles to increase leverage and reduce split times during rapid-fire bolt manipulation.

Less suitable for: Rifles featuring flat/paddle bolt handles, teardrop knobs, oversized aftermarket tactical knobs, or pre-threaded bolt shafts; these configurations require dedicated screw-on tactical knobs or custom gunsmith handle replacements.