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Old February 11, 2011, 05:01 PM   #1
Tommygun1
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can you use a boostered can on fixed barrel?

I'm waiting on my YHM cobra .45 M2 and I was wondering if a boosterd can such as this could be safely used on a fixed barrel gun. I have a semi auto sterling I could have threaded. Also it would be cool to get a MAC type weapon if such a thing were possible. I think atlantic has a few carbine type that would be great to suppress. I'm not going to waste the time or money if its going to screw up the can though. Anyone done this?
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Old February 11, 2011, 06:53 PM   #2
Crosshair
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I built a fixed barrel spacer out of copper pipe that I replaced the spring with for fixed barrels.
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Old February 11, 2011, 07:13 PM   #3
Tommygun1
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Do you have any photos? specs? I'm new to this.
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Old February 11, 2011, 07:26 PM   #4
Crosshair
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I took the piston to the hardware store and found a pipe coupler that fit around it and then cut it to length. That's about all there is.

Took me a couple tries to get the length right. Just so the piston doesn't move.
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Old February 14, 2011, 09:28 AM   #5
Tommygun1
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so you just slide the spring off and put on a pice of copper pipe the diameter and length as the spring?
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Old February 14, 2011, 01:41 PM   #6
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Yup. YHM used to make and sell them, but the ATF got a bit uppity about something and they haven't sold them again. Perfectly legal for you to do it though.
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Old February 14, 2011, 03:57 PM   #7
fireman1291
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ATF withdrew their opinion of adaptors, spacers, pistons. All is well. You can buy a factory sleeve(fixed barrel spacer) or roll your own. Up to you.
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Old February 14, 2011, 05:20 PM   #8
Crosshair
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Quote:
ATF withdrew their opinion of adaptors, spacers, pistons. All is well. You can buy a factory sleeve(fixed barrel spacer) or roll your own. Up to you.
Yup, which is why it is perplexing that YHM won't start selling them again.
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Old February 14, 2011, 08:21 PM   #9
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Hmm. Then show them your opinion by ordering a silencer from another manf.....
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Old February 14, 2011, 10:26 PM   #10
Crosshair
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Hmm. Then show them your opinion by ordering a silencer from another manf.....
Except nobody else, at the time, sold a take apart boostered can. The Tri-Rant was still very much vaporware when I bought my YHM can.

Building a barrel spacer was no big deal. Some copper pipe, a dremel, duct tape, Ferric Chloride, and chemical resistant gloves was all I needed. (OK so I could have used a file instead of the Ferric Chloride, but I had the Ferric Chloride laying around.)
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Old February 15, 2011, 09:43 AM   #11
Tommygun1
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So I called YHM yesterday and asked them about shooting the M2 on a fixed barrel. They said it would be fine even with the spring in place. So now I don't know what the heck to do.
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Old February 15, 2011, 10:17 AM   #12
Crosshair
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Quote:
So I called YHM yesterday and asked them about shooting the M2 on a fixed barrel. They said it would be fine even with the spring in place. So now I don't know what the heck to do.
Yea, they told me that too, but you should use the fixed barrel spacer because otherwise you are going to be jack-hammering your threads and it will screw you over the long term.

Here is the thread where I asked about that over on Silencertalk.

YHM won't sell fixed barrel adapter. Make my own?

Now that I read the thread I remember that I was given the dimensions in a PM. Here they are.

"1.120 outside diameter...1.120 long (yep they are both the same) .994 inside diameter .062 thick"
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