BigE, like Jason, I don't have any experience as well with the army mount. Although, they're really cool looking.
I was looking at Stanwell's Army Mount 88 in the Billiard shape. Its almost 6" in length and a tad over 2" in bowl ht. Its not only a good looking pipe, but the bowl has thick walls. You can view them at both web pages here:
http://www.smokingpipes.com/pipes/ne...oduct_id=69811
http://www.pipesandcigars.com/pipes/...-smooth-pipes/
Good luck!