1/16 SPM-16-004 m240 machine gun, standard barrel, x2 in set.
Recommendation for cleaning:
http://interurbanmodels.blogspot.ru/2015/04/how-to-clean-shapeways-frosted-ultra.html
The print options Frosted Ultra Detail are also available. Print quality may contain roughness surfaces. Recommended to order option FUD If you order the FUD models before and the printing result was known.