Originally Posted by ASD1
take the mag release out, put an old "10" round mag into the gun, then use 2 short screws to hold it in place, that will make it a fixed mag
That would actually work.
Originally Posted by buffalkill
I'd separate upper and lower.
This, however, works less well.
All you have there is a disassembled 'assault weapon'.
It's true, that lower is not centerfire without an upper attached. You could put a rimfire upper on it, no magazine lock needed.
However, if it came to arrest, defending that would cost more than the value of the rifle.