The pistol in McCloskeys hand appears to be a copy of the Raven/Jennings/Bryco design which uses a striker. In the design the striker spring does go behind the striker and is held in place by a take down button (Part #2). When cocked the rear pin of the striker is visible at the rear of the slide in the hole of the take down button. The Cobra appears to be a close copy of the design.
Here is a schematic of the design.
![[Image: 50146265676_e5e3529ca1_z.jpg]](https://live.staticflickr.com/65535/50146265676_e5e3529ca1_z.jpg)
It is common for crime lab firearms sections to have various weapons in the inventory for comparison purposes. There are times firearms used in crimes are recovered in a non functional state. The firearms lab technician will use parts from inventory weapons to get the weapon to function for evidentiary purposes.
A lot of seized firearms that can not be returned to the owner are ordered by the court to be turned over to the lab firearms section. Having access to these firearm helps the lab to complete their required testing/analysis on non functional weapons in a prompt manner without having to buy or source parts.
Here is a schematic of the design.
It is common for crime lab firearms sections to have various weapons in the inventory for comparison purposes. There are times firearms used in crimes are recovered in a non functional state. The firearms lab technician will use parts from inventory weapons to get the weapon to function for evidentiary purposes.
A lot of seized firearms that can not be returned to the owner are ordered by the court to be turned over to the lab firearms section. Having access to these firearm helps the lab to complete their required testing/analysis on non functional weapons in a prompt manner without having to buy or source parts.