A protective helmet adapted to receive and protect the head of a wearer includes an outer shell and an attachment ring removably secured to the outer shell, such that the attachment ring can be selectively attached to or detached and removed from the outer shell. The outer shell is shaped to protect the head of the wearer of the protective helmet and defines a bottom opening and an internal cavity for receiving the head of the wearer. The attachment ring acts as a point of attachment for, and thus secures, one or more components of the protective helmet configured to engage the head of the wearer, such that the components secured to the attachment ring are transported with the attachment ring when the attachment ring is detached and removed from the outer shell.