That's not a battle mug. This is a battle mug! Introducing the OPMOD Battle Mug, which has everything you need for combat libation:
The OPMOD Battle Mug is like no other mug you've seen! This massive mountain of a mug combines three Mil-Spec 1913 scope rails and a block of CNC-machined 6061 T6 billet aluminum with the capacity to hold a sizable 24 ounces of your favorite frothy beverage.
Each one is custom-engraved with its own unique serial number and includes a removable AR15 carry handle.
If you think that's ridiculous, you're obviously underestimating the thirst of real men. Hit play or go to Link [YouTube] - Thanks Brian!
Design flaw: where are the sling mounts?
You can also order the original Battle Mug from www.battlemug.com
John- All the cool kids are sporting 1913/Pic rail-mounted sling points these days :)