in fig7 the initiator receiving portion 736 of a bore seal 730 is formed from a metal or metal alloy while the interface portion 729 of the bore seal incorporating the connector mating features is formed from a high strength polymer material polymer portion 729 may be molded as a separate part and attached to metal portion 736 using one of the methods previously discussed or other methods alternatively polymer portion 729 may be molded directly onto metal portion 736 in the embodiment shown in fig7 e a portion of the initiator receiving portion 736 is crimped over a portion of the initiator assembly to secure the initiator assembly within the initiator receiving portion fig7 f shows a casing 44 secured to bore seal 730 of fig7 e casing 44 encloses a gas generant material 45 positioned in fluid communication with initiator 33 in embodiments where the initiator receiving portion is formed from a metallic material an insulating member not shown may be is positioned between each initiator electrode and the initiator receiving portion to insulate the electrode from the initiator receiving portion fig8 shows yet another embodiment 530 of a bore seal in accordance with the present invention in fig8 a grounding clip 510 is insert molded into the polymeric portion of the bore seal thereby eliminating the step of separately installing the ground clip in the bore seal by separately molding the bore seal or the portion of the bore seal that includes the connector mating features the connector portion of the bore seal including slots undercuts and other features can be readily incorporated into the bore seal at a comparatively low cost.