There were a couple of things that I considered before ordering the Marushin FN 1910. One, what kind of dummy 9mm cartridges can fit into the gun( I dont know if the Marushin 9mm Beretta cartridges work or not). Two, is there any spare magazines for the M1910 since I cannot find any. And three, which is better for the M1910 the MGC or Marushin 7mm caps (Which one runs cleaner,etc.) Thank you every one.