Can You Answer This One??
 

Just how many barrel length were made? I stop counting!

Officially and this is off the top of my head;

3 5/8ths to 4 inches (plus or minus a bit)
4 3/4 in the 1906 version
6 inch navy
8 inch artillery
carbine length (12 I think?)

Then in commercial lengths, same as above, but the distributors would put on almost any size you requested, see early ads for that :)


ed

Missed one, 1923 Long Barrel Commercial
 

Kenyan page 204, 10 to 24 inches

It seemed in longer versions they had trouble with the action functioning, even the 11 &3/4" carbine lengths have an accelerator spring to help close the action. Lugers At Random by Charles Kenyon, pages 30 & 62.

How about the shortest barrel? Looks like Ralphs' 'seven shot prototype' 3 1/4 inch built by George Luger for His personal use

I think I have seen a couple of 2" models and dont forget the 32 and 380 Babys.
http://members.rennlist.org/lugerman/GeorgsBaby.JPG
http://members.rennlist.org/lugerman/LDEBaby1.jpg
http://members.rennlist.org/lugerman/Baby1.jpg

Wow!!!!!!!!!!!!