You must be logged in and verified to contact the designer.
This product is designed to protect the exposed threads on various airsoft pistols. It is pre-threaded for 14mm- (counterclockwise) a common thread used in airsoft. The grooves on the outside ensure positive grip with or without gloves on. Print it in a bright color to allow others to know it is an airsoft replica or for transportation to the airsoft field. This is an airsoft part only and cannot be made to work with real firearms