At some point after it's battle with Surleena in 2002, MIB Special Services sanctioned an array of "one-shot-kill" weapons that would vaporize what ever organic being it came into contact with. These designs were kept true to the original weapons array that alraedy existed. These replacements include:
2012 Standard Issue (Handgun)
Particle Randomizer (Cricket Replacement)
Each of these weapons is extremely powerfull, and should be used with caution.
Each of these new fangled Weapons appeared in the 2012 film, Men In Black 3
Each was designed and crafted by Studio Art and Design.