This might be old news for some of you but I stumbled across it. It's made by B&T, the company that makes the skeleton stocks for the UMP/MP5? It's called the APC9.
the package of trigger is the same of AR15, i think to mount my MR223a1 trigger package because on my hk have mounted geissele, also can work the original b&t, the gun is made with very good material, very nice quality, and really nice precision, barrel lenght 175mm for 9x21 model, i think can replace the work of mp5K/UMP, if it had been more than 5 cm long barrel and handguard as it would have been better, I do not like the compact, in fact between mp5 and mp5k prefer the classic. I like very much the MP5 (never fired) because is a piece of story, characteristic, one word and all world know that weapon, but have choose b&t because i'm sure have future mind construction then old mp5 and other materials.HKPro member Alfred has (or had one). Thread on it in the All Gunz section of premium content.
Reported to be light weight, but front heavy and oddly balanced. Accurate. Ambi-bolt release, reciprocating charging handle. Decent trigger.
Also reported to not be nearly as good of a firearm as the mp5 fwiw.
Americanel - Not sure if it's being produced yet but according to the PDF on their webpage there is a version with a 240mm barrel called APC9-P Carbine (BT-36005)barrel lenght 175mm for 9x21 model, i think can replace the work of mp5K/UMP, if it had been more than 5 cm long barrel and handguard as it would have been better, I do not like the compact, in fact between mp5 and mp5k
Yes i have see, in italy there is short version 9x21, short version 45acp and now at test bench has 9luger version and do not know how long the barrel because there is a page on the website of the importer but no photos