In a AJAX request to the server in MVC, how can I pass a list of id's to the controller's action function?

I accept with or without use of Html helpers.

I know MVC's model binder has no problem when it comes to simple types like int, string and bool.

Is it something like I have to use and array instead in the action?

I don't care if I have to use an array or List and even if the strings I int or strings I can always convert them. I just need them on the server.
My List ids gives null at the moment.

Javascript:

var ids= [1,4,5];

// ajax request with ids..

MVC Action:

public ActionResult ShowComputerPackageBuffer(List<int> ids) // ids are null

{

    // build model ect..

    return PartialView(model);

}

EDIT: Added my AJAX request

$(document).ready(function () {

    $('#spanComputerPackagesBuffer').on('click', function () {

        var ids = $('#divComputerPackagesBuffer').data('buffer');

        console.log('bufferIds: ' + bufferIds);

        var data = {

            ids: ids

        };



        var url = getUrlShowComputerPackageBuffer();

        loadTable(url, result, data);

    });

});



// AJAX's

function loadTable(url, updateTargetId, data) {

    var promise = $.ajax({

        url: url,

        dataType: html,

        data: data

    })

    .done(function (result) {

        $('#' + updateTargetId).html(result);

    })

    .fail(function (jqXhr, textStatus, errorThrown) {

        var errMsg = textStatus.toUpperCase() + :  + errorThrown + '. Could not load HTML.';

        alert(errMsg);

    });

};



// URL's

function getUrlShowComputerPackageBuffer() {

    return '@Url.Action(ShowComputerPackageBuffer, Buffer)';

};

SOLUTIONS: // Thanks to @aherrick comment. I missed the good old traditional

$.ajax({

    type: POST,

    url: '@Url.Action(ShowComputerPackageBuffer, Buffer)',

    dataType: json,

    traditional: true,

    data: {

        bufferIds: bufferIds

    }

});