Yes, it is legal......at least as far as the feds are concerned......state laws may vary. Overall length with the stock attached would need to be at least 26".....under 26" and it falls under the National Firearms Act "short barreled rifle" rules.
No, it doesn't - according to a response letter from BATF on the subject.
Here's a NAA Mini Bicycle Rifle, a fella over on RFC built:
![[Linked Image]](http://www.naaminis.com/discus/messages/2/28802.jpg)
Legally, there no difference between a non-folding rifle and a folding rifle - they're both rifles, perfectly legal as long as they meet the current Federal requirement of a 16" barrel length and a 26" OAL with any folding stock extended.
It's perfectly legal to convert a handgun to a rifle for one's own use, as opposed to converting for sale - No NFA status, no fees, no permits, no nothing.
What's NOT legal, w/o BATF permits/licences/tax/etc, is to either:
Convert a firearm originally manufactured as a rifle into a handgun
- or -
reconvert back to a handgun, a handgun that has previously been converted into a rifle.
BTW - There's no regulated minimum or "maximum" handgun barrel lengths.
It's not a rifle until a rifle buttstock, or the fitting(s) for the rifle buttstock, are installed on the handgun frame.
After a handgun's been converted into a rifle, it's no longer legally a handgun, even with the folding stock taken off for maintainence or repair - any more than (say) a Remington 700 would be with it's stock removed.
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