A connector assembly (100, 200) for attachment to a telecommunications enclosure, comprising: a forward connector housing having a passageway, extending from a first housing end to a second housing end, for routing of a telecommunication cable; an intermediate body, positionable over a portion of the forward connector housing, the intermediate body comprising a forward portion and a rearward portion, with the forward portion including an external key and a plurality of trigger elements, wherein the external key extends outwardly from an arcuate surface of the intermediate body and wherein each trigger element comprises a foot portion (157a, 157b) and a locking portion (158a, 158b), and the rearward portion includes an orientation key in substantial alignment with the external key, an optical connection portion coupled to the second housing end of the forward connector housing; an adapter (160A, 160B), positionable over the intermediate body, having a thru-hole (161A, 161B) defined therethrough, and at least one external portion (162A, 162B', 162B") having a non-circular profile and a plurality of stepped inner surfaces (168A, 168B), wherein at least one of the plurality of stepped inner surfaces (168A, 168B) is configured to couple with the external key and the orientation key and wherein the plurality of trigger elements is configured to engage with the thru-hole, and a rearward connector housing, positionable over the optical connection portion, having a cylindrical body with a longitudinal channel disposed therein, wherein the external key is positionable within the longitudinal channel, wherein upon coupling of the forward connector housing, the intermediate body, the optical connection portion, the adapter (160A, 160B), and the telecommunication cable, and upon insertion of the connector assembly (100, 200) into a port structure of the telecommunications enclosure, the connector assembly (100, 200) is environmentally sealed. a forward connector housing having a passageway, extending from a first housing end to a second housing end, for routing of a telecommunication cable; an intermediate body, positionable over a portion of the forward connector housing, the intermediate body comprising a forward portion and a rearward portion, with the forward portion including an external key and a plurality of trigger elements, wherein the external key extends outwardly from an arcuate surface of the intermediate body and wherein each trigger element comprises a foot portion (157a, 157b) and a locking portion (158a, 158b), and the rearward portion includes an orientation key in substantial alignment with the external key, an optical connection portion coupled to the second housing end of the forward connector housing; an adapter (160A, 160B), positionable over the intermediate body, having a thru-hole (161A, 161B) defined therethrough, and at least one external portion (162A, 162B', 162B") having a non-circular profile and a plurality of stepped inner surfaces (168A, 168B), wherein at least one of the plurality of stepped inner surfaces (168A, 168B) is configured to couple with the external key and the orientation key and wherein the plurality of trigger elements is configured to engage with the thru-hole, and a rearward connector housing, positionable over the optical connection portion, having a cylindrical body with a longitudinal channel disposed therein, wherein the external key is positionable within the longitudinal channel, wherein upon coupling of the forward connector housing, the intermediate body, the optical connection portion, the adapter (160A, 160B), and the telecommunication cable, and upon insertion of the connector assembly (100, 200) into a port structure of the telecommunications enclosure, the connector assembly (100, 200) is environmentally sealed.