A connector, comprising: a first rear body comprising a first barrel projection on a front side of the first rear body, wherein the first barrel projection is hollow and is configured to receive a spring and a ferrule assembly via a front end of the first barrel projection, and wherein the first barrel projection comprises a groove at or near a base of the first barrel projection; a second rear body comprising a second barrel projection on a front side of the second rear body, wherein the second barrel projection is hollow and is configured to receive another spring and another ferrule assembly via a front end of the second barrel projection, and wherein the second barrel projection comprises another groove at or near a base of the second barrel projection; a first front body configured to rotatably fit over the first barrel projection while the spring and the ferrule assembly are in the first barrel projection, the first front body comprising a first rear opening that receives the first barrel projection, wherein at least a portion of a rim of the first rear opening comprises a ridge configured to be received by the groove of the first barrel projection while the first front body is attached to the first barrel projection; and a second front body configured to rotatably fit over the second barrel projection while the other spring and the other ferrule assembly are in the second barrel projection, the second front body comprising a second rear opening that receives the second barrel projection, wherein at least a portion of a rim of the second rear opening comprises another ridge configured to reside in the other groove of the second barrel projection while the second front body is attached to the second barrel projection; and a duplex clip configured to hold the first rear body and the second rear body in a substantially parallel orientation, wherein the duplex clip comprises: a first pair of opposing rails on a left side of the duplex clip configured to hold a first side plate of the first rear body; and a second pair of opposing rails on a right side of the duplex clip configured to hold a second side plate of the second rear body. a first rear body comprising a first barrel projection on a front side of the first rear body, wherein the first barrel projection is hollow and is configured to receive a spring and a ferrule assembly via a front end of the first barrel projection, and wherein the first barrel projection comprises a groove at or near a base of the first barrel projection; a second rear body comprising a second barrel projection on a front side of the second rear body, wherein the second barrel projection is hollow and is configured to receive another spring and another ferrule assembly via a front end of the second barrel projection, and wherein the second barrel projection comprises another groove at or near a base of the second barrel projection; a first front body configured to rotatably fit over the first barrel projection while the spring and the ferrule assembly are in the first barrel projection, the first front body comprising a first rear opening that receives the first barrel projection, wherein at least a portion of a rim of the first rear opening comprises a ridge configured to be received by the groove of the first barrel projection while the first front body is attached to the first barrel projection; and a second front body configured to rotatably fit over the second barrel projection while the other spring and the other ferrule assembly are in the second barrel projection, the second front body comprising a second rear opening that receives the second barrel projection, wherein at least a portion of a rim of the second rear opening comprises another ridge configured to reside in the other groove of the second barrel projection while the second front body is attached to the second barrel projection; and a duplex clip configured to hold the first rear body and the second rear body in a substantially parallel orientation, wherein the duplex clip comprises: a first pair of opposing rails on a left side of the duplex clip configured to hold a first side plate of the first rear body; and a second pair of opposing rails on a right side of the duplex clip configured to hold a second side plate of the second rear body. a first pair of opposing rails on a left side of the duplex clip configured to hold a first side plate of the first rear body; and a second pair of opposing rails on a right side of the duplex clip configured to hold a second side plate of the second rear body.