LEGO Transparent Brown Black Shooter for Disc Ø12,9 (53990)

LEGO Transparent Brown Black Shooter for Disc Ø12,9 has been used in at least 5 LEGO sets over the past 18 years, since it was first used in 2006. You can also find this part in at least 2 other colors. It has a design ID of 53990 which can usually be found molded into the bottom of the part.