If you still have that DBoys Shell-Ejecting Kar 98k, better dust it off and give it an upgrade. Rare Arms, the company behind the shell-ejecting XR-25 Gas Blowback Rifle, have produced a full steel special bolt head. With this upgrade, you get a snappy shell ejection with your 98k and it is easy to install.

Hat tip to eHobby Asia for the link.