Got them in a mystery box long ago. The b30 looks to possibly be real, but I have no reference so it is being sold under the assumption that its a replica. The scope mount has no markings, same assumption. There is some modification made to the b30 as shown in the pics. Sold as is, no guarantees on fit or function. $100 shipped for the b30, $30 shipped for the b13, both for $120 shipped.