The Howa Bolt Ball is a rubber ball that fits over your existing bolt knob.
HRBB
Howa Tactical clamp on bolt knob. Upgrade your knob without permanently changing your OEM handle.
HTBK
MDT's Clamp On style Bolt Knob can be installed over the top of your existing factory bolt knob offering superior grip, ergonomics, and style of your rifle.
MDT-105336-BLK
The fully enclosed bolt on two piece Quick Load Knob bolts to your factory knob.
Made in the USA
BOK-HOWA