One of the finest Battle Rifles ever produced the Mjolnir was built with a recoil dampening stock, reinforced frame, heavy barrel, and given a darker paint job in order to suit the shooter's needs. In this case Keeper Kimberly who found that the standard M14 she had chosen to wield was simply not up to snuff to the riggers of close quarters combat and therefore required a short barreled rifle loaded in 7.62 Rounds.
+2 Armor Piercing, +4 Shatter Shot, +7 Stopping Power, -3 Accuracy.