You are buying one NEW 22 cal magazine for the Standard Manufacturing G4S rifle.  This is made by FDM of PLA plus material.  Not factory magazine.  These fit better than the factory magazine and functions fine.  I will have a "Thompson" style stock set for this gun listed soon that I am currently designing, so check back often.  If you are not happy with anything I sell, I will gladly refund you back.  Please contact me with any issues you might have.