Sten question

[Paulie Lugnuts]

I recently finished a MkIII kit. I don't have a mag, so I fired it single shot on Saturday. It fires and ejects fine, but won't reset the hammer. At first I thought the bolt wasn't recoiling back far enough, but I don't think that's it. If I cycle the bolt by hand with the trigger pulled the hammer won't catch. I think its suppose to, in order to fire semiauto.
Its all Indianapolis Ordance parts. Any thoughts?

[johnyreb]

Stupid question,

But did you weld the block in place to make sure the selector switch is welded in the semi position? Does the semi "trip lever"(my name for it")move freely?

If that lever gets bound up, it won't reset the disconnector and the striker is gonna follow the bolt every time.

[Paulie Lugnuts]

I'll look at that tonight, thanks.

[ar15barrels]

I recently finished a MkIII kit. I don't have a mag, so I fired it single shot on Saturday. It fires and ejects fine, but won't reset the hammer. At first I thought the bolt wasn't recoiling back far enough, but I don't think that's it. If I cycle the bolt by hand with the trigger pulled the hammer won't catch. I think its suppose to, in order to fire semiauto.
Its all Indianapolis Ordance parts. Any thoughts?

Switch it to semi-auto.

[Paulie Lugnuts]

I can see how its suppose to work, but the "L" shaped lever doesn't extend into the receiver high enough to get tripped in either selector button position. I either put it together wrong or it needs to be modified to work with the smaller inside diameter receiver.

[johnyreb]

Yep.

I have an IO set up aswell. I think I talked to you last Saturday at the oroville range.

I welded the block in the front of the trigger housing to force it in to the semi position, welded up the groves in the selector, and then welded the selector in the semi position. A bit overkill, but I don't want to have a issues with it.

[Paulie Lugnuts]

I remember talking to you at Oroville. Did you modify the L lever?

[johnyreb]

Nope, I just tinkered with it till it worked properly. I tested my FGC before I welded the tube on so I could adjust stuff.

I made the slot in the receiver a bit wider for that lever to pass through.

The bolt does not hammer on it, it just bumps it down. You could pull it and weld a bit on the end of it if it's to short.

[Paulie Lugnuts]

That sounds like the easiest way to fix it. I'll try it this weekend.

[saki302]

It sometimes helps to polish the top of the disconnector so the hammer slides over it easier. I think sometimes the disco is a little rough, and can bump the hammer over it instead of being pushed down.

If you cut the receiver correctly, pushing the selector to auto won't do anything, except bind up your FCG.

-Dave

[chiz]

if you are using a kit with a smaller i.d tube it is usually thicker and the "L" shaped lever will not contact the bolt to reset the trigger. I just bent the "L" shaped piece up and mine worked fine.

[Paulie Lugnuts]

I have another question. Is a Sten considered featureless, so no worries about a bullet button? I've welded a bar across the "thumb hole", so it should be legal.

[Gowking]

Yes it is featureless. To be honest I don't buy into the rod needing to be welded there as the original intent of the design was never meant to be for your thumb to go in there but rather to save weight. That being said you are GTG with what you have there.

[MPG]

Are the springs tuned?
Maybe you have to cut the striker spring a bit shorter

[kcstott]

Yes it is featureless. To be honest I don't buy into the rod needing to be welded there as the original intent of the design was never meant to be for your thumb to go in there but rather to save weight. That being said you are GTG with what you have there.

Agreed, the hole in grip would not qualify as a thumbhole not give you a pistol grip. Stens are good to go as is so long as Semi auto part are used