| Name | 
  Notes | 
  | 
  Bamboo Cannon [1]   | 
  Section of bamboo packed with gunpowder, used to fire diamonds into the heart of your enemy. [1] | 
  | 
  Bayonet [2]   | 
  A spike or knife-style blade which was designed to be attached to the end of a rifle, allowing it to be used as a spear. [2] | 
  | 
  Bilitrium Explosives [3]   | 
  Powerful explosive made from combining the crystalline substance bilitrium with an antimatter converter. Bajoran terrorist Tanah Los used bilitrium explosives in an attempt to destroy the wormhole in 2369. [3] | 
  | 
  Bio-Dart [4]   | 
  Weapon used by the Voth. The darts deliver a very fast acting tranquillizer. [4] | 
  | 
  Biogenic Weapon [5]   | 
  Extremely deadly biological armament, illegal under interstellar treaties. Biogenic weapons can be made from a combination of biomimetic gel, retroviral vaccines, isomiotic hypos, and plasma flares. [5] | 
  | 
  Biomolecular Warhead [6]   | 
  Weapon developed by the Borg and Federation for use against Species 8472. The warheads used modified Borg nanoprobes. [6] | 
  | 
  Biotoxin [7]   | 
  Biotoxin containers. [7] | 
  | 
  Blast suppressors [8]   | 
  Device which limits explosive damage to a small area. [8] | 
  | 
  Borg Cutting Beam [9]   | 
  A weapon used by the Borg to cut sections out of a ship for assimilation. Commander Riker compared the effects of the beam on a ship to being "carved up like a roast". [9] | 
  | 
  Borg Rifle [10]   | 
  This weapon was employed by a group of ex-Borg encountered by Chakotay in 2373. [10] | 
  | 
  Borg Shield Drainer [9]   | 
  This weapon is occasionally used by the Borg in order to capture rather than destroy a ship. The shield drainer causes no physical damage to the ship; it rather simply drains the shields. Several hits were sufficient to bring down the shields of a Galaxy class starship. [9] | 
  | 
  Breen Energy Dampener [11]   | 
  In 2375 the Breen joined the Dominion's war against the Federation/Klingon alliance. They brought with them a decisive advantage - a weapon which, with a single hit, could completely disrupt the power systems of any allied Starship. The weapon was first brought into play at the Chin'toka system, where it was used to devastating effect; an entire allied fleet was utterly defeated and destroyed by the Breen. [11]
  In the aftermath, it was discovered that a single Klingon vessel had been able to withstand the Breen weapon without ill effect, apparently because of a minor adjustment which had been recently made to the ship. More than a thousand Klingon ships were quickly modified to give them the same resistance, but this still left the Dominion with a 20 to 1 advantage. [12]
  With no time to research the weapon and develop a countermeasure for Federation and Romulan ships, the allies launched a desparate attempt to steal a Jem'Hadar attack ship from Cardassian space. The attempt succeeded [13], and the allies were able to resume the battle in full force. [14] | 
  | 
  Broadsword [15]   | 
  Double edged bladed weapon, approximately a metre long, with an unusually heavy blade. [15] The weapons were commonly used in Earth's Medieval period, and were a feature of Q's recreation of the Robin Hood legend. [16] |