Actually Jim, the jigs and conversion parts for the Bren's and several other demilled machine guns have already been through approval from the ATF and are now in common commercial use.

There are lots of Brens out there but you will also find MG-34's, MG-42/53's, Stens, Sterlings, Thompsons and all kinds of commie stuff that has been through the wringer with the ATF. Most of them come with the approval letter from the ATF that approved the design.

Its rather a PITA to get through the process as they wont tell you crap usually if they dont consider it a gun but if you are close enough to a workable design they will give you what you need to finish for approval.

Normally you will find the original designer with be a 07/SOT, and from there it will flow out to the small potatoes guys like us.


Dan