Extension?

[Edward Tinker]

Extension should be the upper or receiver

Unless you try to put an early 1900 onto a newer frame it should just work (possibly slight modifications).

Here is the early frame tutorial that Ron Wood made up years ago

http://forum.lugerforum.com/showthread.php?t=3932

note - puretexan - you must be used to a typewriter as it looks like you hit the ''return'' each line