50BMG AR15 upper legal?

[lumwilliam]

If you have a Registered Assualt Weapon or Registered .50BMG AR lower, then you can use a .50BMG upper. If it wasn't Registered, then you can't.

I've got a Daniel Defense DDXV. I can take my lower and stick a side-mounted, magazine-fed, bolt action upper on it that is .416 Barrett or .338 Lapua, no problem, right? But sticking a .50 BMG upper on it would make it an illegal assault weapon? I thought uppers weren't regulated?



How does the fixed magazine thing come into play? does the side mounted magazine also need to be fixed/with bullet button? What about belt fed? How is that regulated?

[ke6guj]

I've got a Daniel Defense DDXV. I can take my lower and stick a side-mounted, magazine-fed, bolt action upper on it that is .416 Barrett or .338 Lapua, no problem, right? But sticking a .50 BMG upper on it would make it an illegal assault weapon? I thought uppers weren't regulated?

uppers, by themselves, are not requlated. It is only when possession/usage of them causes an illegal configuration. Owning a .50BMG upper is not illegal, but if you install it on a lower that is not a registered AW or registered .50BMG rifle, you have created an illegally possessed .50BMG rifle.

How does the fixed magazine thing come into play? does the side mounted magazine also need to be fixed/with bullet button? What about belt fed? How is that regulated?

fixed magazines are only required when you want to have a semi-automatic centerfire rifle that has "evil features". With that side-mag upper, it is a bolt-action rifle, not a semi-auto, so there is no requirement that it be fixed.

Now, with a belt-fed upper on a semi-automatic centerfire upper, you do have what is most-likely considered to be a detachable magazine, so you would need to set it up to be a featureless build.

[lumwilliam]

fixed magazines are only required when you want to have a semi-automatic centerfire rifle that has "evil features". With that side-mag upper, it is a bolt-action rifle, not a semi-auto, so there is no requirement that it be fixed.

Now, with a belt-fed upper on a semi-automatic centerfire upper, you do have what is most-likely considered to be a detachable magazine, so you would need to set it up to be a featureless build.

So a side mag on an upper is...not a mag....but an ammunition belt.....is...a mag? So if I go featureless, and a belt is a...mag...then do my belts have to be 10 rounds or less?

[2600fromAtari]

^No, he is speaking specifically about that Tactilite upper. You can clearly see that it is a bolt action rifle. Because it is a bolt action rifle, it may have a detachable magazine, not because the magazine attaches from the side.

Your belts must be 10 rounds or less unless they are pre-ban just like your standard magazines, and yes, your rifle would have to be featureless.

[Bhobbs]

So a side mag on an upper is...not a mag....but an ammunition belt.....is...a mag? So if I go featureless, and a belt is a...mag...then do my belts have to be 10 rounds or less?

The bolt action side fed upper you showed does not need a fixed mag because it is bolt action. The aw laws apply to semi auto center fire rifles.