model.named_parameters() only returns parameters, i.e. instances of torch.Parameter.  quantized convs pack weight and bias into a special object which is not using torch.Parameter, which is why it does not show up via named_parameters().  You can inspect the weight and bias of quantized convs by using qconv._weight_bias().  e2e example: gist:2456e16d0f40366d830bcfe176fafe5c · GitHub 16