The Strike Magazine Follower for 12-Gauge Shotgun has a spiral fluting design for self-cleaning to enhance reliability. The high visibility (hi-vis) choices of colors help provide a quick and easy visual when checking the magazine tube to see if its empty for safety. With the anodized process on the aluminum surface, the follower slides smoothly inside the mag tube. This lightweight and high-strength Strike Magazine Follower is machined from 6061-T6 aluminum and is a drop-in installation. The Strike Magazine Follower for 12-Gauge Shotgun is compatible with many of the popular shotguns on the market and will provide a smooth sliding, self-cleaning and reliable upgrade.