SKS Carbines > Projects

Hand made 1950 spring loaded firing pin

(1/4) > >>

theSKSguy45:
The 1950 sks I recently acquired had a broken firing pin. After looking at it for a bit I decided to attempt to make my own replacement. Considering I don’t have access to a lathe and this was done with a grinder, drill, and dremel I think it turned out well. I used a maxim punch like the one shown in the photos as a base. Any thoughts about if I should be heat treating it? Where should and shouldn’t be hardened? And any feedback in general is welcome.

Worst case scenario my replacement breaks and I need to source a new one.

IMPORTANT EDIT: do not manufacture your pin in the way shown. If you look at the comparison between the original bolt and mine you will see the back of the original pin has two steps machined at about a 45 degree angle where as mine does not. These are important. If you do not include them the bolt carrier will prematurely push on the firing pin without any input from the hammer, potentially causing a premature detonation or even an out of battery detonation. I’ve since fixed it on my pin. I caught this before attempting a live fire thankfully.

Mine updated (left) Murray’s (right)


Starting to remove material

The part is starting to take shape

The end result (left), the broken pin that came with the rifle (middle), an original pin from another rifle (right)

Rear of all 3 pins

My pin installed (left) original pin installed (right)

Installed pins from the rear

Installed pins from the side

echo1:
Great job, does it work? PAX

theSKSguy45:
We will find out in a couple hours

Witchywoman:
Its amazing that you did that with a drill and no lathe or CNC. I kick myself because when my uncle passed away, our family automatic transmission shop had 2 WW2 era huge lathes in the back room and a drill press where my uncle often machined parts or cleaned them up. They both worked perfectly. My mother just ended up selling them as a bulk buy with everything else on the premises so someone got 2 free lathes in the process. A huge waste.

Curious to if this worked successfully. You got your own Khyber pass operation going on there.  :)

echo1:
The Khyber Pass Fab team is close to my heart. If I could melt steel with fire I'd be dangerous  rofl PAX

Navigation

[0] Message Index

[#] Next page