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Question on converting Omni hybrid .223/5.56 to 300 AAC blackout pistol.
Posted on 10/13/16 at 12:42 am
Posted on 10/13/16 at 12:42 am
So I'm interested in converting my Omni hybrid to a 300 blackout pistol. From what i'be read online, it should be as simple as ordering a 300 aac blackout barrel and a tube stock correct. I know any barrel on a rifle under 16" has to have a special form and 200 relax stamp, but I go with the tube stock or a Sig brace stock, then the stamp is not required and it isn't illegal as long as the weapon is fired from a position other than shoulder mount(so cheek fire). Has the laws changed recently, all the articles and YouTube videos are from like 2015. Also, can I have the barrel shipped to my home or does it have to be shipped to a FFL? Also, what recommendations do you guys have for barrel length and where to buy from? I know palmetto state is highly recommended on here. What about CDNN?
3
Posted on 10/13/16 at 6:27 am to 7thWardTiger
Technically all you need is a barrel. But things like gas block (if you have a pinned a2 gas block on your barrel), muzzle device, etc can be a pain to change. Unless you have so many 223 uppers you don't know what to do with them I would suggest just building a whole new upper that way it's easy to go back and forth with whatever caliber you choose.
Posted on 10/13/16 at 8:23 am to DeoreDX
And you don't need to ship a barrel or complete upper to a ffl.
Go with the new upper.
Go with the new upper.
Posted on 10/13/16 at 8:38 am to DownSouthDave
quote:
Go with the new upper.
+1
No reason to get just a barrel and not use the 5.56 parts.
Plus 5.56 is much cheaper to shoot than 300. So if you wanted to go plinking, you would prefer to just swap uppers.
Posted on 10/13/16 at 8:44 am to DownSouthDave
quote:
Go with the new upper.
Posted on 10/13/16 at 8:55 am to 7thWardTiger
Posted on 10/13/16 at 11:03 am to 7thWardTiger
Technically, a pistol configured from a firearm that was originally a rifle would have to be registered and would be subject to all the requirements of the NFA.
Also, the swapping upper method isn't as convenient when going rifle to pistol or vice versa since you also have to change out the receiver extension and would likely need a heavier buffer as well for 300BLK.
There are no "stocks" on pistols, except when the ATF refers to the pistol grip as a stock. A stock alone makes it a rifle (designed to be fired from the shoulder). You mean a pistol receiver extension or a sig brace stabilizer (which are garbage).
Also, the swapping upper method isn't as convenient when going rifle to pistol or vice versa since you also have to change out the receiver extension and would likely need a heavier buffer as well for 300BLK.
quote:
but I go with the tube stock or a Sig brace stock
There are no "stocks" on pistols, except when the ATF refers to the pistol grip as a stock. A stock alone makes it a rifle (designed to be fired from the shoulder). You mean a pistol receiver extension or a sig brace stabilizer (which are garbage).
This post was edited on 10/13/16 at 11:10 am
Posted on 10/13/16 at 11:47 am to Propagandalf
7th check on this I'm pretty sure Prop is right. It's ok to go from AR pistol to rifle but it's a NoNo to go the other way. I always check the Other box on line 18 when buying my lowers, it enables either pistol or rifle to be built out of it and either configuration utilized.
Posted on 10/13/16 at 12:07 pm to Propagandalf
quote:
Technically, a pistol configured from a firearm that was originally a rifle would have to be registered
I'm willing to bet a lot of people have (unknowingly) broken this rule.
But prop is correct. Either get a 16" 300BO upper, or get a stripped lower
Posted on 10/13/16 at 1:07 pm to sigsauer
quote:
I always check the Other box on line 18 when buying my lowers, it enables either pistol or rifle to be built out of it and either configuration utilized.
Stripped/complete lower receivers are only acquired and disposed as an 'Other' firearm. Even if you asked the dealer to transfer it to you as a 'Pistol' he would still have to log it out as an 'Other'. Changing a firearm from one type of firearm to another would require that dealer be an 07FFL manufacturer and registered with the DDTC. There's more to it than checking one box over another. So fear not, your stripped receiver will always leave the dealer as an other and you are always free to build it out as you please. Also note, Section B questions 18-23 (where the boxes for 'handgun', 'long gun' and 'other' reside) is supposed to be filled out by the seller/transferor and not marked by the buyer.
quote:
I'm willing to bet a lot of people have (unknowingly) broken this rule.
No doubt.
This post was edited on 10/13/16 at 1:08 pm
Posted on 10/13/16 at 1:33 pm to Propagandalf
quote:
Technically, a pistol configured from a firearm that was originally a rifle would have to be registered and would be subject to all the requirements of the NFA.
I'm not a player in the AR game, but from my understanding of the rules, I think you're right. An example from the non-AR game: I like 16" barreled bolt actions pistols. Non are currently being made. If I take a Rem Model 700 rifle, cut the barrel back to 15" and cut off the stock near the hand grip so the gun's less than 26" OAL, I have a pistol......but it's not a legal pistol according to the ATF. I'd prolly never get caught, but what if I did?
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