M1 Carbine Magazine and Safety Spring & Plunger Assembly.  Left, early type I with 7 coils for use with early push safeties and type I or II mag catches.  Right, late type II with 8 1/2 coils for use with type III push and flip safeties and the type III and later mag catches marked on the face with M or M. ***OUT OF STOCK FOR TYPE I, ONLY TYPE II AVAILABLE***