Check out our Space Knight Death Ray Rifles. This will work as a volkite style rifle for you marines. The sculpt comes as one peice and you get 5 with right hands attached and 5 without the rifles will work with typical marine minatures.
We suggest using the Smooth Fine Detail Plastic is made of a UV cured acrylic polymer that offers a high resolution to produce incredibly fine features. This makes it a great choice for wargaming miniatures with very fine embossed or engraved details, well suited for painting.