Will a STEN bolt fit any MK?

[imageaudio]

Wondering if a STEN Bolt will fit all STEN versions 1-5. Or did some MK's use a different measurement?

 

I'm not asking about speed bolts or bronze bolts, etc. Just trying to figure out if a surplus bolt I saw on an auction site will fit my MK2 if the seller doesn't know anything about it?

 

Thanks in advance.

 

 

[Frank Iannamico]

MKV bolts are a little different, but will work in MKII, but a MKII bolt won't work in a MKV. Otherwise I believe they interchangeable.

[APEXgunparts]

Wondering if a STEN Bolt will fit all STEN versions 1-5. Or did some MK's use a different measurement?

 

I'm not asking about speed bolts or bronze bolts, etc. Just trying to figure out if a surplus bolt I saw on an auction site will fit my MK2 if the seller doesn't know anything about it?

 

Thanks in advance.

 

The bolts on the MK2 & MK3 interchange:

https://www.apexgunparts.com/sten-bolt-assembly-steel-9mm-fits-mk2-mk3-smg-3718.html

 

The MK5 has a shorter action and the FCG is closer to the breech face.

Because of this the MK5 bolt has an additional clearance cut, visible on the front and bottom of the bolt:

https://www.apexgunparts.com/sten-mk5-bolt-assembly-steel-9mm-fits-mkv-smg-only.html

 

AND I can see I need to restock MK2 bolts!

That is a heavy box I ran across last week.

 

Richard

[imageaudio]

Thanks Frank and Richard for your very prompt replies.

 

For future readers reference, I have attached pictures for easy identification.

 

If looking directly at the face of the bolt, notice the cut around the 2 O'clock position

Edited July 31, 2020 by imageaudio

[m3bobby]

If you can find a Mk1 bolt (rare) then it will function in a Mk1 to 3 gun but you cant move the change lever.