I picked up a used road case for ground transportation. I can load one or several weapons with mags, ect. Like this: https://www.ebay.com/itm/393706689443?hash=item5baabf53a3:g:Zq4AAOSwGHphjtAA
I met David Kucer and his son Zavie at the Baltimore Antique gun show a few years ago. They were very friendly and had a few pieces on display. Rumor is that Zavie is now running the business.
I looked hard at one of these a few years ago. I really like the design. But the lack of 7.65 long ammunition caused me to pass. Now fast forward to today. The 7.65 long is back in limited production at Steinel Ammo Co. The mags are available at Sarco.
With practice any weapon can be mastered. Grip , stance and burst size. I read somewhere that the chinese would turn their Mauser 712 on the side for full auto bursts. All about technique.
FYI,There are 2 copies on ebay right now . https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=small+arms+review+thompson&_sacat=0
How about Astra 903 parts? https://www.checkpointcharlies.com/ecommerce/machine-guns/machine-guns-clas-iii/astra-903-7.63mm-broomhandle-machine-pistol,-form-4-transferable.html
Buddy owned Stumgewehr.com He used to sell MAT-49 stuff. I think he passed away.recently. http://www.sturmgewehr.com/bhinton/Ad_Pics/FrenchMAT49mags.jpg http://www.sturmgewehr.com/forums/index.php?/topic/3219-french-mat49-mags-nos-128ea-sling-mag-cases-campana-training-device/