Gunsmithing TL3 firing pin

[Smith1175]

If this question was already asked my apologies I didn’t find anything when I searched for it.

Does anyone know how to remove the cocking piece from the firing pin assembly on a TL3 or Origin? I am timing the trigger on both actions and can’t tell if the cocking piece is held in by a pin or a super small set screw? Any help would be great thanks!

 

[THEIS]

Hi,

May try sending @BigHorn / ZAI Team a PM for assistance. Nothing better than going direct to source; That is one of the attributes of SH!!

Sincerely,
Theis

 

[Zermatt Arms]

To remove the cocking piece, you'll first need to remove two small set screws (1/16" Allen wrench). Then, compress and secure the spring in the cocked position to make unscrewing the cocking piece and shroud easier. Remove the cocking piece by turning the shroud. Replace the cocking piece and screw it down to the located detent on the firing pin. Decompress the spring and replace the two set screws.

That's all it is. If you have any questions, please let us know. We're always happy to help and generally respond in less than 12 hours.

Thanks - Ray

 

[Smith1175]

Thanks for the help that answers my question!

 

[Sheldon N]

Gotta love the responsiveness of the Bighorn team!

To add to the comments above, those two set screws are located one on top of the other in the same hole.

Also, if you don't have a firing pin spring compression tool, a quick and dirty approach to de-tensioning the firing pin spring is to drill a hole into a scrap piece of wood, large/deep enough to allow the tip of the firing pin up to the main shoulder of the spring assembly. Then just shove the pin into the wood to compress the spring and twist off the rear shroud and cocking piece. The friction against the wood should be enough to keep it from twisting while you unscrew.

 

[acudaowner]

check out 3:40 explains taking the bolt apart just saw and used the video last night to check mine .

 

[Sheldon N]

check out 3:40 explains taking the bolt apart just saw and used the video last night to check mine .

Good reference for sure.

To get the actual firing pin and cocking shroud out, you have to disassemble the firing pin assembly further after taking it out of the bolt. Not something you would normally do unless changing firing pin or cocking piece.

 

[ForgeValley]

Thanks for the info, I have a new cocking piece on the way. I could see myself scratching my head for about an hour on the double set screws.

 

[Smith1175]

Gotta love the responsiveness of the Bighorn team!

To add to the comments above, those two set screws are located one on top of the other in the same hole.

Also, if you don't have a firing pin spring compression tool, a quick and dirty approach to de-tensioning the firing pin spring is to drill a hole into a scrap piece of wood, large/deep enough to allow the tip of the firing pin up to the main shoulder of the spring assembly. Then just shove the pin into the wood to compress the spring and twist off the rear shroud and cocking piece. The friction against the wood should be enough to keep it from twisting while you unscrew.

Awesome man thanks! That was my exact thought too! My left eye got messed up at work this spring and my near sight is’t quite what it used to be and I couldn’t tell if it was a pin like the Rem 700 or a set screw. But hell yeah gotta love the support from the hide thanks again!