The Phase 5 Hi-Vis 12 GA 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 the U.S.A. and comes in red and green anodizing with bright white lettering and a center hole to help verify that the magazine tube is clear by sight and touch. Features: About one third of the bearing surface of a stock follower for smooth feeding and no binding Bright red or green anodize with white lettering for high visibility while clearing weapon Center hole to help verify clear weapon by touch About 80% stronger than 6061-T6 aluminum Compatibility: *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.* Semi Auto: Benelli M2 & M4 Mossberg 930 Mossberg 940 (must remove dimples) Remington 1100 & 11-87 Stoger M3000 Other 12GA semi auto shotguns Pump: Mossberg 500 Remington 870 (must remove dimples) Keltec KSG (takes two) Other 12GA pump shotguns NOT Compatible with: Benelli Nova, SuperNova, Vinci or Super Vinci Beretta 1301 Browning BPS or A5 CZ 612 or 712 FN SLP Franchi 912 Variomax Winchester SX2 & SX3 & SX4 Smith Wesson Model 3000 Pump
