So What is the Differerence ?? SBR vs Pistol

[DucatiRon]

Don't know if this the best place for this question. If not please move it. So when buying an upper for an AR-15 when is it considered a SBR versus a Pistol. I was thinking of having a custom AR-15 upper made. I see one that I'm interested in but it is listed as an SBR. It is 12" in length. I know that SBR's start at under 16" in length but is there a cut off to when it can be considered a pistol. Such as my OA-93 that has a 6.5" barrel. Thanks in advance for the info.

[Guns4Fun]

Anyone can buy any length upper they want. The key thing for the buyer is to make sure to have a sbr'd lower or a pistol lower to attach it to if it is less than 16".

You should not purchase an upper that is less than 16" and then attach it to a regular rifle lower. You will run into problems with the law for having a non registered SBR.

[knight0334]

A pistol has never ever had a shoulder stock attached to it.

A SBR is a firearm where there was once or still has a should stock and the barrel length is less than 16" or the overall length is less than 26".

[mojo]

As stated above ... the seller is just CYA. If you have an upper with a barrel less than 16" you need one of the following:

1. A SBRed lower
2. Stripped lower that never had a buttstock attached
3. A lower set upped with a pistol buffer tube.

[DucatiRon]

Well I currently have a dedicated pistol lower. I am interested in buying a 12" Beowulf upper. I was questioning this because the website stated all NFA rules apply. I just contacted AA and they said because it's just an upper no paperwork is required. Thanks for all the help.