Originally Posted By: Rock KnockerI know little about the laws and even less when it comes to building your own but I have seen a couple lever guns sold at local shops with the(which I have now just learned) a mares leg stock, or grip, I'm not sure what to call it. I never asked but I can't imagine ether of these shops carrying SBR's especially jumping through all those hoops for a lever action.
The couple I saw looked like a bunch of fun but maybe tough to shoulder, I think each was in .44 magnum.
Those Henry Mare's Leg's are not SBR's. They're handguns.
The largest differentiations to be made for those HANDGUNS, as I mentioned in my first message, is that they're NOT over 26", and their barrels are not over 16". The "stock" on that design is necessary because they have to have SOME form of receiver extension as a mainspring housing (and inherent safety features) as well as a support for the finger lever. Much like an AR-15 pistol, its design dictates that SOME extension behind the action is necessary. But the length of pull and the hand position on the Mare's Leg is what disqualifies that "mini-stock" as constituting a buttstock. Attachments on a receiver extension on an AR are a bit different, since the hand position is completely different.
I've made Mare's Leg pistols in the past, the unfortunate part is that you can't make a handgun from a rifle - it becomes a Weapon Made from a Rifle or AOW (they deemed my Marlin 1894 Mare's Leg as an AOW).