Umarex was created in 1972.
A proprietary umarex magazine.
I suggest you contact Umarex at the link below and ask them for advise.
I suggest you contact Umarex Customer Service at the link below and send it back for repairs.
This model is an 8MM Blank firing pistol made by Umarex. It looks similar to a Colt 1911 45
Try the UMAREX brand.
There are several airguns that use a magazine similar to a real gun. The Walther PPK/s it even has blow-back like a real Walther PPK (Made by Umarex) The Smith&Wesson M&P 40 (Made by Umarex) The Tanfoglio 1911 (Made by Umarex) The Beretta Elite II (Made by Umarex) The last 3 BB guns listed use the exact same Magazine. There are others beyond these listed.
No.
I believe you are asking about a Walther PPK/S made by Umarex. I would contact Umarex directly and ask them at Customer Service. See the link below.
It is listed as 5.7 inches long
Pretty much a 1:1 copy
Not intended for user to take apart.
This inexpensive BB gun is made in Taiwan.