Archon Type B ignition kit. Factory OEM. Firing pin with indicator.
In the kit:
1× Firing Pin Rebound Spring (Pos. 9)
1× Firing Pin Guiding Sleeve (Pos. 18)
1× Firing Pin with indicator (Pos. 8)
1× Firing Pin Spring Guide (Pos. 20)
3× Firing Pin Springs (Pos. 19)
1× Rear Cover Plate (Pos. 13)
Confirm it fits your Type B. Installation and final safety checks belong to a qualified gunsmith when that is the right call.