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tju1973 · January 21, 2010, 10:14 PM

I have a couple (or so) questions before I start my SBR paperwork for an AR15 build I am going to do--

1) Am I ok using a lower marked "Pistol for an SBR?
2) Am I ok once the approval from the ATF is back to me, to put any length upper on the build at any time? Ie change from a 7.5 to an 11.5 barrel on the same receiver?

I was told I could use the pistol receiver-- so if I can, I will probably build a pistol then SBR it if it is legal to do.
I also was told, I could not change uppers, but this doesn't make sense, as the firearm is the marked part-- ie receiver..

Any help or advice shot my way is greatly appreciated!

January 21, 2010, 10:14 PM	#1
tju1973 Senior Member Join Date: February 25, 2008 Posts: 111	AR 15 SBR questions I have a couple (or so) questions before I start my SBR paperwork for an AR15 build I am going to do-- 1) Am I ok using a lower marked "Pistol for an SBR? 2) Am I ok once the approval from the ATF is back to me, to put any length upper on the build at any time? Ie change from a 7.5 to an 11.5 barrel on the same receiver? I was told I could use the pistol receiver-- so if I can, I will probably build a pistol then SBR it if it is legal to do. I also was told, I could not change uppers, but this doesn't make sense, as the firearm is the marked part-- ie receiver.. Any help or advice shot my way is greatly appreciated!