[meh92]

How does Tommy Bostic's mod on the USC's ejection port lock the folding stock back? Can I see a picture?

Thanks

 

[Anthony.L]

Just look for any factory UMP picture showing the stock ledge. Tom builds a replica of the factory ledge.

 

[meh92]

And this locks the stock down on a stock-block conversion?

 

[Anthony.L]

And this locks the stock down on a stock-block conversion?

No, only works with a rear stub fuse job. The stock block pushes the stock back to far.

 

[meh92]

Makes sense. Thank you.

 

[heheheyoshi]

No, only works with a rear stub fuse job. The stock block pushes the stock back to far.

Makes sense. Thank you.

Actually, He can make a mod so it will lock using a stock block. He did it on mine. Its just a little plastic hook above the ejection port.

 

[meh92]

Actually, He can make a mod so it will lock using a stock block. He did it on mine. Its just a little plastic hook above the ejection port.

Ok, that's what I was looking for. Any chance you'd post a pic or two?

Thank you

 

[omega21]

Ok, that's what I was looking for. Any chance you'd post a pic or two?

Thank you

Yes, that would be helpful for me as well.

 

[heheheyoshi]

Ok, that's what I was looking for. Any chance you'd post a pic or two?

Thank you

Yes, that would be helpful for me as well.

Yes, I'll take one tonight and upload them tomorrow.

 

[meh92]

Thank you

 

[heheheyoshi]

Here you go. I tried my best to get a good look at it with nothing but a cell phone. The paint has taken a beating from the ~2500 rounds through it.

First picture shows the stock block. Final picture shows it with the stock folded.

I should probably note that I am left handed so I can't really say how well it holds the stock in place while firing because my right arm pushs against it as well.

 

[meh92]

Thanks for the detailed pics. That's what I was hoping to see.

I'm curious, why did you go with paint instead of a dye-job?

 

[Cjude]

Im pretty sure the receiver was dyed or already black and the hook he welded on was painted to match-at least that's how Tommy explained it to me. Im wondering how many rounds it took to beat up the paint job like that?

 

[heheheyoshi]

Thanks for the detailed pics. That's what I was hoping to see.

I'm curious, why did you go with paint instead of a dye-job?

Im pretty sure the receiver was dyed or already black and the hook he welded on was painted to match-at least that's how Tommy explained it to me. Im wondering how many rounds it took to beat up the paint job like that?

Cjude is correct. My USC was black to begin with but that portion had to be repainted when he "welded" on the hook. I imagine dying the whole receiver just to cover a small portion isn't very cost effective.

I first remember noticing it was coming off around 1000 rounds or with now just under 2500 total. Its hard to say because most of the firing I've done with this thing was over very short periods of time. 700 rounds over two days than 1500 more over two days a year later.

 

[meh92]

Thanks again. That might be well worth adding on to my receiver.