Id reaching null in the controller action Asp.Net MVC

I have a list of requests (Vr), in this list I have created a button to end this request (Open Mv)

WhenIclickthisbutton,I'mredirectedtomyLowview,whichhasitsownattributes,plustheRequestId(Vr).Thispartisworkingfine,I'mgettingtheclickonthebutton,andloadingtheselectedobjectinthelowview.Theproblemisin[httpPost],WhenIclicksubmit,therequestidisnull,andthedownidcomeswiththerequestid.

Actionget

publicActionResultMvVr(intid){Vrvrs=newVr();vrs=vrs.BuscarPorIdDaVr(id);Mvmv=newMv();mv.Vrs=vrs;returnView(mv);}

viewofActionOnlyThepartythatloadstherequestdata

@ModelModels.Mv

                        AboutUs                

@using(Html.BeginForm()){@Html.AntiForgeryToken()<divclass="form-horizontal">

                <hr />
                @Html.ValidationSummary(true, "", new { @class = "text-danger" })
                @Html.HiddenFor(model => model.Vrs.VrId, "VrId")

                <fieldset class="well">
                    <div class="row">
                        <div class="col-md-12">
                            <div class="col-md-4">
                                <div class="form-group">
                                    @Html.LabelForModel("Motorista", htmlAttributes: new { @class = "" })

                                    @Html.DisplayFor(model => model.Vrs.Motorista.Nome, new { htmlAttributes = new { @class = "form-control" } })


                                </div>
                            </div>
                            <div class="col-md-4">
                                <div class="form-group">
                                    @Html.LabelForModel("Usuário", htmlAttributes: new { @class = "" })

                                    @Html.DisplayFor(model => model.Vrs.Usuario.Nome, new { htmlAttributes = new { @class = "form-control" } })


                                </div>
                            </div>
                            <div class="col-md-4">
                                <div class="form-group">
                                    @Html.LabelForModel("Itinerario", htmlAttributes: new { @class = "" })

                                    @Html.DisplayFor(model => model.Vrs.Itinerario, new { htmlAttributes = new { @class = "form-control" } })

                                </div>
                            </div>
                            <div class="col-md-4">
                                <div class="form-group">
                                    @Html.LabelForModel("VrId", htmlAttributes: new { @class = "" })

                                    @Html.DisplayFor(model => model.Vrs.VrId, new { htmlAttributes = new { @class = "form-control" } })

                                </div>
                            </div>


                        </div>
                    </div>

Action HttpPost

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult MvVr(Mv objMv, int VrId)
{
     if (ModelState.IsValid)
     {
         var identity = User.Identity as ClaimsIdentity;
         var login = identity.Claims.FirstOrDefault(c => c.Type == "Id").Value;
         var usuario = db.UsuariosDb.FirstOrDefault(u => u.Id.ToString() == login);
          objMv.IdUsuario = usuario.Id; // Usuário que Finalizou a Vr


          //objMv.VrId = VrId;
          db.MvDb.Add(objMv);
          db.SaveChanges();
          TempData["Sucesso"] = "Baixa Realizada Com Sucesso.";
          return RedirectToAction("Index", "Painel");
      }
      TempData["Errado"] = "Favor Preencher os Campos Corretamente.";
      return View(objMv);
}