I just purchased a new mark III 22/45. I brought it home, read disassembly instructions and did not drop bolt stop pin before pulling bolt back. Now the main spring housing will only come out about a quarter inch or so and the magazine will not go in smoothly or eject without having to manually remove it . The slide release also does not function properly and the trigger will not reset. Needless to say I have a boogered up pistol that has never even been fired. Help would be greatly appreciated. Thank you.