The spring and follower will work. You need a mag box and a triggerguard. I also believe there is a tiny screw that holds the mag box in place.

1st Special Operations Wing 1975-1983
919th Special Operations Wing 1983-1985 1993-1994

"Manus haec inimica tyrannis / Ense petit placidam sub libertate quietem" ~Algernon Sidney~