They make several, not sure what they come with. My 1301T came with a big fluffy thing, I bought what I am pretty sure is the one my 1301C came with:
https://www.midwestgunworks.com/page/mgwi/prod/E73006
But this one looks nice, more rounded:
https://www.midwestgunworks.com/page...rod/e7302-spsk
Says it is thicker, but appears thinner.