This replacement part is a factory original from Glock. Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts which guarantees excellent fit and reliable operation. Some parts may need to be installed by a qualified gunsmith.
Note: This part has the number "30274" molded into the housing, but this is the current production Gen 4 Trigger Housing. This is how Glock produces this part, Glock part number 30275.