I have two Bren Ten pistols and several magazines. I bought them in the early 90s when prices were lower than today, but still a big investment back then. One has been hard chromed while the other has been unfired and left alone in the box. All of the mags work fine through the hard chromed gun. The mags were made by MecGar. I think the demise of the gun was the two owners, Dornaus and Dixon privately funded their venture and did not have a lot of capital in the project and the whole magazine issue was them not being able to secure enough from MecGar and customers waiting a long time past their estimated delivery date.
Richard Voight of Voight Sporting Goods bought the rights to the Bren Ten and at one point planned to bring the gun back as the Peregrine Falcon. I contacted Peregrine and received a brochure with a price list but Voight never got the project running. Voight sold the rights to the design to Vltor. Viltor debuted an updated design at SHOT Show a few years back and promised to bring the gun back as Bren Ten. Their contact person at the time if memory serves correct was Eric Kincel. Viltor never got the project off the ground supposedly due to them fulfilling military contracts for their other products. Master gunsmith Chuck Warner was working on a modern version that never panned out.
I think the Bren Ten was way ahead of its time and failed because the business side was not well thought out. If you handle an actual gun, it has the CZ75 ergonomics and feels pretty good in the hand. Recoil is brisk with full power loads. I have original Norma 200 gr and 170 JHP. I also like the 175gr Winchester Silver Tip. I actually thought a company such as Ruger with their experience in stainless manufacturing could have built the gun successfully.
In 2024, with all of the CNC technology, I personally think the Bren Ten could be done in 9mm, .40/10mm, .45 ACP with some design changes that would make manufacturing simpler. EAA/Defiant makes several 10mm variants but nothing as close as the Bren Ten. If a modern version ever came out, I would a pair.