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Posted: 9/3/2007 9:10:08 AM EDT
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I have a Bushmaster carbine complete and a Rock River (already SBR in 9mm(ATF made me spec which caliber, so Form 2 has 9mm only hould Thanks for the help. |
You can use a .223/5.56 upper on your already registered 9mm lower. Send the ATF a courtesy letter stating you wish to change calibers so they can update the registry. While you're at it, SBR the Bushy & then buy a few more lowers to SBR as well . The forged lowers are pretty much same & then there are the billets. Just don't buy a cast lower.
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| The way I understand it if you only own a SBR registered lower you can own many different uppers of different caliber and bbl lengths. You have to send a letter to the ATF describing the different upper configurations you plan on using. They will attach the changes with your original form#1. Now for the bad news, if you own any regular non SBR AR-15's, lowers or complete rifles, you may not own additional short barrel uppers. So your best bet is to get another tax stamp. If this sounds stupid and confusing, it is, but I don't make the rules. |
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A few points for you. 1. You do not need to send in a letter to have 223 added as long as that does not become the primary caliber. You can send in a letter, but it is not required. The ATF goes by the base configuration... and if it is dominantly in that config (read... only occasionally in a different caliber)... you do not need to notify them. If you don't believe me, just write a letter to Tech Branch... they will clarify this for you. Alternatively, you can CYA and just send them a letter with every caliber ever made for the AR. If you're really paranoid... don't forget to list the alternate barrel lengths and overall lengths when the new caliber upper is installed on the receiver - as those parameters would change on your NFA doc as well. 2. While legally you can own multiple short uppers with one SBR and other AR15s... I wouldn't do it. In addition, I HIGHLY recommend not owning them without another receiver that can legally use them (if you also own AR rifles). There are multiple cases where individuals have won against the ATF regarding this nuance, but the hassle and legal fees that you open yourself up to ain't worth it. The fact that the ATF would attempt prosecution multiple times after losing cases speaks volumes. In short, either register some other SBRs or AOWs or take the cheap non-NFA route - buy about 5 AR PISTOL receivers. No tax stamps, no wait, no loss of NFA Tax dollars if you want to sell them in the future. I bought several pistol lowers just so that I could own multiple short barrels.... very quick/cheap way to ensure compliance and avoid any potential prosecution. 3. Anvil Arms sells very high-quality AR pistol receivers for $100. |
You can own them, you just have to have a 16> attached to any unregistered lowers if you have more short uppers than unregistered lowers. Just don't place any of yor short uppers on an unregistered lower or have an unassigned lower just lying around. I have more short uppers than I have registered lowers, but all my unregistered lowers have their factory 16> uppers on them. |
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Here is a link to thread in the armory section concerning legality of owning multiple sbr uppers with non sbr lowers. Go down 11 posts, M4madness has a letter from the ATF posted The sbr part is highlighted in red. Also there is a lot of confusion as to what is legal even at the ATF Talk to 3 different people and you will get three different answers. I suggest you get your answer in writing from them. http://www.ar15.com/forums/topic.html?b=6&f=22&t=199905&page=19 AR15.COM :: Forums :: SBR FAQ |
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