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Posted: 3/30/2011 3:58:23 PM EDT
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I was just told that a DIAS can be used in a transferable RR.
Is this true in any way? Pardom me if this should be in the legal section... I dont post in this part much. |
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You may need to clarify further what it is you wish to know.
If you have an RR, and an RDIAS, there's no reason you couldn't remove the factory auto sear from the RR and use the DIAS in its place, but that would be pretty silly. There is a subclass of "registered receiver" machineguns which were improperly made by installing an unregistered DIAS into a semi receiver, and declaring the whole thing to be an RR. Is it those you're inquiring about? |
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I believe manufacturing a DIAS constitute manufacturing a new machine gun. Therefore you'd have 2 machine guns, one DIAS and 1 RR. Therefore this would be illegal. Same reason a RR M16 that is married to a DIAS can't be drilled for a traditional autosear, doing so would create a new machine gun. |
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Quoted:
A DIAS won't function properly, or at all, because there is no shelf in a m16 receiver for it to sit on. The impact on the sear from the carrier and hammer would bend the DIAS housing or break it at the takedown pin notch. Nope - the DIAS indexes off the takedown pin post. It sits just fine in an RR (I just checked it with one each of mine to verify). Still a silly idea, but won't break it or not work. |
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Quoted:
I believe manufacturing a DIAS constitute manufacturing a new machine gun. Therefore you'd have 2 machine guns, one DIAS and 1 RR. Therefore this would be illegal. Same reason a RR M16 that is married to a DIAS can't be drilled for a traditional autosear, doing so would create a new machine gun. There's a huge volume of "pre-october, 1981" DIAS out there, which ATF ruled were not "considered" machineguns by their fiat. I've long believed that the only legitimate use for them was as replacement parts for an improperly converted "RR". That doesn't address the use of an RDIAS with an RR. |
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Quoted: Quoted: I believe manufacturing a DIAS constitute manufacturing a new machine gun. Therefore you'd have 2 machine guns, one DIAS and 1 RR. Therefore this would be illegal. Same reason a RR M16 that is married to a DIAS can't be drilled for a traditional autosear, doing so would create a new machine gun. There's a huge volume of "pre-october, 1981" DIAS out there, which ATF ruled were not "considered" machineguns by their fiat. I've long believed that the only legitimate use for them was as replacement parts for an improperly converted "RR". That doesn't address the use of an RDIAS with an RR. Yea, but how does one prove it's a pre-october 1981 DIAS? Also, per you last sentence, I don't see any legal issue using a RDIAS with a RR, other than it would be stupid expensive. |
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Quoted: It sits just fine in an RR (I just checked it with one each of mine to verify) I don't don't have a DIAS, but I assumed from looking in my M16 that it wouldn't fit correctly. I agree it's silly, why replace a $10 sear with a $100 DIAS or $5000 RDIAS? I don't think it's dumb at all. I'm surprised someone hasn't come up with a self contained M16 FCG like the Timney or Wilson to keep stress off the receiver. If your thinking along these lines the DIAS isn't a bad idea even though the sear isn't under much stress. However, if it was legal, I'm sure people would be doing it already. |
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Quoted:
It sits just fine in an RR (I just checked it with one each of mine to verify)
I don't don't have a DIAS, but I assumed from looking in my M16 that it wouldn't fit correctly. I agree it's silly, why replace a $10 sear with a $100 DIAS or $5000 RDIAS? I don't know what M16 you have, but it would fit in mine. And it would be a $12k RDIAS. Unless you know of some where I can buy a couple at $5k. Then stop holding out. 
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Quoted: I just want to keep the stress off my RR... And I like to collect things. Thats why I ask. We are in a machine gun forum.... words like wicked expensive quits applying a few pages back. The sear pin area sees very little stress compared to other parts of the receiver. If you're concerned with pin hole wear, you could throw on a set of KNS pins, including the sear pin. The question is, is it worth an additional $10K to make your $12K last a few thousand rounds longer? You should never wear out an RR with quality, properly tuned parts... |
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Run extra long pins for the 3 in the FCG. Have a pair of plates machined from 4140 with holes to match the ones in the receiver, then harden it up.
Now you have some serious reinforcement at the cost of a few ounces and $200. Pretty ghetto, but would probably reduced the stress on the base aluminum. Posted Via AR15.Com Mobile |
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Quoted:
I just want to keep the stress off my RR... And I like to collect things. Thats why I ask. We are in a machine gun forum.... words like wicked expensive quits applying a few pages back. I think legally, by existing rules, yes you can. ALthough last time there was a "two guns one MG" question, ATF poo-pood it. |
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Quoted:
Quoted:
I just want to keep the stress off my RR... And I like to collect things. Thats why I ask. We are in a machine gun forum.... words like wicked expensive quits applying a few pages back. I think legally, by existing rules, yes you can. ALthough last time there was a "two guns one MG" question, ATF poo-pood it. But it can only be used in a RR.... this is the verdict What did they reject? The way I see it the DIAS is simply a sear that doesnt require holes to be drilled. It is a sear that uses the rear lug of the upper for support. In my case using it in anything other than my RR would be just the same as converting a semi to a mg. |
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