Quote:
Originally Posted by hayhugh
I have a 12" barrel on a 1918 receiver with a Erfurt block that interchanges with .22cal and a 9mm receivers on a Interarms (Mauser) lower. Do you see a problem with shooting any of these combinations?
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Are you planning on putting a stock on it?
If no stock, then no worries
The stock is what makes it a SBR - unless you take a rifle and cut it down.
But your combinations are just different uppers.