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11/22/2012 7:36:00 PM EDT
Is there a difference between a standard AR receiver and one intended for a pistol?  I thought they were one and the same but now I'm having my doubts.  If I don't ask I will never know and always feel like a liberal.
11/22/2012 7:44:25 PM EDT
[#1]
The writing on the side may be different but functionally... identical.
11/22/2012 7:56:46 PM EDT
[#2]
I sure feel better now and a bit wisor.  Thanks for the quick response.  I love this sport!
11/22/2012 8:04:41 PM EDT
[#3]


Functionally, no difference.  Exact same part.





The difference is in the legality / paperwork.  If your lower was purchased as part of rifle, it was recorded on the 4473 transfer as a "rifle".  It can never have a sub 16" barrel (as most pistols are) without a $200 Short Barrel Rifle tax stamp.



If, however, your lower started as a bare, stripped lower, or purchased as a pistol, then it was transfered on the 4473 as "other", "receiver" only, or "pistol".  In this case, the unit can be built up as a pistol.



There are more nuances, but that's the gist of it.  Your state may have additional regulations for pistols as well.  


11/22/2012 8:50:27 PM EDT
[#4]
My lower receiver came as a bare bones receiver which means it can go either way.  

I also own an XP100 action that started out as a pistol.  Would that mean that I could build a sub 16 inch shoulder mounted fire arm with it since it originated as a pistol?  Or is there a reg against a shoulder mounted pistol?  It presently sits in a benchrest stock with a heavy .222 Remington barrel on it 26 inches long?
11/22/2012 9:26:38 PM EDT
[#5]



Quoted:


My lower receiver came as a bare bones receiver which means it can go either way.  



I also own an XP100 action that started out as a pistol.  Would that mean that I could build a sub 16 inch shoulder mounted fire arm with it since it originated as a pistol?  Or is there a reg against a shoulder mounted pistol?  It presently sits in a benchrest stock with a heavy .222 Remington barrel on it 26 inches long?


If by "shoulder mounted fire arm" you mean "has a stock", then it's no longer a pistol, it's a SBR and needs a stamp.



Pistol:







SBR:







 
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