(covers information from several alternate timelines)
In the Broken Bow Incident of 2151, the Klingon courier Klaang used his disruptor in Broken Bow, Oklahoma, on Earth. In that case, Klaang's disruptor was utilized to destroy a corn silo housing two Suliban agents. (ENT: "Broken Bow")
In 2364, two Klingon renegades imprisoned aboard the USS Enterprise-D assembled a two-pronged, boxy disruptor from elements hidden in their clothing and used it to disable the force field and security personnel. (TNG: "Heart of Glory")
In 2365 and 2366, Klingon officers such as Kargan, Klag, K'Ehleyr, and Kurn carried a distinct variation of disruptor featuring a brown handle, a long black barrel, and an extended silver muzzle. (TNG: "A Matter Of Honor", "The Emissary", "Sins of the Father")
In 2259 of the alternate reality, Klingon disruptors were used in a battle between a Klingon patrol, an away party from the USS Enterprise and Khan Noonien Singh, a conflict which took place in the Ketha Province on Qo'noS. This style of Klingon disruptor could not only be used to fire at a target, but was also equipped with a double-blade on the front of the barrel and a spiked bottom edge of the handle. (Star Trek Into Darkness)
Background information Edit
From the time the disruptors were redesigned for the Star Trek films until their reappearance in Star Trek VI: The Undiscovered Country, the muzzle of each Klingon disruptor was cut off, so the weapons could fit inside their holsters. Hence, no instances of a Klingon disruptor being drawn from its holster were directly shown in the first five movies. However, in Star Trek III: The Search for Spock, although Kruge and another Klingon did draw their disruptors with the uniquely wide muzzles, the views of their holsters were hidden. When Director Nicholas Meyer chose to show scenes of Klingons drawing their disruptors in Star Trek VI: The Undiscovered Country, the prop makers had to account for this. "We had to cut the front of the existing pistols and redesign the front muzzle area," remembered Greg Jein. (The Making of the Trek Films, UK 3rd ed., p. 129)
A Klingon disruptor seen in Star Trek: Enterprise was sold off on the It's A Wrap! sale and auction on eBay.  Klaang's Klingon disruptor from the pilot episode was also sold and is made from molded foam rubber, painted brown with faux metal accents. It measures 16 × 8 × 3 inches.