50BMG AR15 upper legal?

[Turo]

Wasn't there something about 50BMG in a pistol being considered a DD because of the way the diameter of the barrel is measured?

Either way, it's gonna hurt to shoot that.

[ke6guj]

Wasn't there something about 50BMG in a pistol being considered a DD because of the way the diameter of the barrel is measured?

I've heard that before, but I think it might be FUD. Nobody has been able to show where ATF measures the diameter of a handgun barrel differently than they do for a rifle.

There were .50" revolvers out that had .500" lands/.510" grooves sized for .510" bullets and they weren't considered DD. A .500" bore gauge won't slide down the barrel. It wasn't until the Desert Eagle .50 came out with a polygonal barrel sized for .510" bulelets that that .500" bore gauge would slide in, so it was considered DD. So they retooled the DE50 to use .500" bullets and the bore gauge wouldn't fit anymore, so it was legal.

But those other conventionally-rifled .500"land/.510" groove handguns aren't called DDs.

[phamkl]

I don't know since I couldn't [wasn't looking really hard] find much info on them but a title 1 long arm is neither a rifle nor a pistol and isn't regulated. I think this is the category an M2HB falls under. Because of that I THINK that you could get a 26" bbl .50 BMG upper mate it to an OLL that does not have a stock on it and it won't be a rifle nor a pistol. Now what would be the purpose? I would get one of these and put a tripod under it and keep it in my zombie defense tower.

[bwiese]

That idea always freaked me out a bit. What happens if your aluminum RAW lower gets damaged by either .50BMG stress or a OBD? It's not like you can easily repair an AR lower (something I discovered as a PV2 armorer in '90) or transfer the serial number to another lower.

Depends on mfgr.

Colt might - in fact they did to retain/mantain folks' "pre-ban" status after 1994 Fed AWB was in place. The old receiver was destroyed and pulled off the books, and a new receiver of identical configuration (fence, submodel title, etc.) was reserialized with the now-vacant prior serial#.

[cmth]

I don't know since I couldn't [wasn't looking really hard] find much info on them but a title 1 long arm is neither a rifle nor a pistol and isn't regulated. I think this is the category an M2HB falls under. Because of that I THINK that you could get a 26" bbl .50 BMG upper mate it to an OLL that does not have a stock on it and it won't be a rifle nor a pistol. Now what would be the purpose? I would get one of these and put a tripod under it and keep it in my zombie defense tower.

I think you're correct. As long as there never was a shoulder stock, it's not a rifle, just a Title I firearm. A plain receiver extension with no way to attach a stock would be attached to the lower. Then the firearm would be attached to some type of pintle or tripod to allow it to be fired without needing shoulder support.

The state made a very narrow definition when it banned .50 BMG rifles and no other firearms chambered in .50 BMG. If there's no shoulder stock, and never was any shoulder stock, then it's not a rifle under the state's definition of such.

[target]

so we can legally purchase an ar 50 bmg upper but not combine it with any of our lowers unless the lower has no buttstock...well this topic got me to start searching for a california legal 50 bmg and i ran into this website (buymilsurp.com) that says they sell california legal 50 bmg rifles that are made by anzio iron works. is this company just selling a rifle with no buttstock?

[ke6guj]

most likely they mean that they offer it in 510DTC for us in CA.

[target]

awww dammmmmittt

[50 Freak]

Simple answer:

Upper by itself: Legal to own

Put the upper on a unregistered AW or 50 Cal: Illegal

[flyinryan]

What year did they ban the 50bmg? And what year did they start producing single shot bmg uppers? Was there a registration proccess?

[ke6guj]

What year did they ban the 50bmg?

dec 31, 2004 was the last day you could buy a .50BMG rifle.

And what year did they start producing single shot bmg uppers?

AFAIK, 1999

Was there a registration proccess?

yes, any .50BMG rifle purchased before 2005 could be registered.

[stitchnicklas]

so it's better just to get a 510dtc and be legal and shoot in the better format..

[flyinryan]

Was the registration a requirement? Like a regular Awww? What would happen if u bought 1 in 04 and never registered it? Similar to owning a standard magazine before the ban? Or was the ban on just purchasing(I'm not advocating any illegal activity)

[ke6guj]

Was the registration a requirement? Like a regular Awww?

yes, registration as a .50BMG rifle was requred, just like for AWs.

What would happen if u bought 1 in 04 and never registered it?

then you would be in possesion of an unregistered .50BMG, a potential felony.

Similar to owning a standard magazine before the ban?

nope.

Or was the ban on just purchasing(I'm not advocating any illegal activity)

ban is on purchasing and possesion.

[flyinryan]

Thx for the info