Shop › FORTIS SWITCH RAIL MOD2 15.3" MLOK FORTIS SWITCH RAIL MOD2 15.3" MLOK $242.20 Fortis Manufacturing, Inc. SWITCH MOD2 Rail System, 15.3", MLOK, Black Finish AR15-SWITCH-M2-15-ML Quantity: Add To Cart Added! Fortis Manufacturing, Inc. SWITCH MOD2 Rail System, 15.3", MLOK, Black Finish AR15-SWITCH-M2-15-ML