The Tandemkross TK18N0421BLK1 Bolt Keeper Extended Bolt Lock is a purpose-built upgrade for shooters who want faster, more reliable bolt control on their rimfire platform. This low-profile kit combines an extended bolt lock lever with a textured knob to make locking the bolt back or releasing it more intuitive and accessible.

Designed as a drop-in firearm accessory, the Bolt Keeper Extended Bolt Lock enhances handling without adding unnecessary bulk. It is ideal for range use, training, and competition where smooth manipulation and quick status checks matter. The thoughtful design reflects Tandemkross’s focus on practical innovation for everyday shooters.

Key Features:

• Manufacturer: Tandemkross
• Model: TK18N0421BLK1 Bolt Keeper Extended Bolt Lock