I bought this gun out of a bargain bucket, I am wondering what gun it is as I need to buy a mag. I got told it was a "HFC 190" (https://www.kombatkit.co.uk/hfc-hg190m-airsoft-gun-magazine-hg-series-gas-blow-back-guns-gbb-multi-model-fit-4133-p.asp) and bought a mag for it and it didn't fit. I really would like to use this gun so if anybody could help me out it would be great!