The Phase 5 Low Drag, High Visibility 12 Gauge Shotgun Follower (12GSF) is designed to feed smoothly with no binding in most factory 12-gauge magazine and extension tubes. The 12GSF is precision machined from solid 7075-T6 aluminum bar-stock, in red, blue and green anodizing with bright white lettering and a center hole to help verify that the magazine tube is clear by sight and touch. FeaturesAbout one third of the bearing surface of a stock follower for smooth feeding and no bindingBright anodize with white lettering for high visibility while clearing weaponCenter hole to help verify clear weapon by touchAbout 80% stronger than 6061-T6 aluminum Note: Fits in most factory 12-gauge shotgun magazine tubes and extension tubes WITHOUT spring/follower retention dimples. You will need to remove the dimples or exchange the magazine tube to install the 12GSF. Compatibility:Semi Auto:Benelli M2 & M4Mossberg 930Remington 1100 & 11-87Stoger M3000Other 12GA semi auto shotgunsPump:Mossberg 500R...