So i am looking to buy a M50 as my first MG. I do have 3 others that are waiting for a F4 transfer right now but with the current wait times i most likely wont get them till next year so between my travels i need some thing to play with . I have done a lot of reading around here on this section of the board regarding current issues and what not with them. Was just wondering if there is anything else i should ask or look for ? David has one on his site that i sent him a bunch of questions about. and from the SN it looks like its a 57 production run (SN is S5210) I asked about bolt and extract and fins on comp anything else i am missing? I already did go to keystone arms and placed an order for extra parts and bolt just in case. thanks for the help and advice in advance.