Mulepacker, guess you need one to be cool? 
Imagine how much cool it will be loading down the mules with an AR, 30 round magazine sticking out, and how cool it will be asking some leather craftsman to make you a scabbard that fits slim and trim to the mule while winding down the trail through some overhanging branches. Silently slipping that AR out of that scabbard while sliding your leg over the haunches, and then ripping off 20-30 rounds to emulate a firefight against some ????????.
I thought mules were pretty smart and hope they don't giggle too much!

Imagine how much cool it will be loading down the mules with an AR, 30 round magazine sticking out, and how cool it will be asking some leather craftsman to make you a scabbard that fits slim and trim to the mule while winding down the trail through some overhanging branches. Silently slipping that AR out of that scabbard while sliding your leg over the haunches, and then ripping off 20-30 rounds to emulate a firefight against some ????????.
I thought mules were pretty smart and hope they don't giggle too much!
