1/18 SPM-18-004 Heavy gun scopes: AN/PAS 13Cv3 Thermal scope, Trijicon ACOG 6x48 Scope, Meyers Glare Mout Visible Green Laser.
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.
Recommendation for cleaning:
http://interurbanmodels.blogspot.ru/2015/04/how-to-clean-shapeways-frosted-ultra.html