M910 Point-defense gun

The Point-defense gun is a United Nations Space Command starship-mounted weapon that fires 50mm high-explosive projectiles.Halo: The Flood, page 215
==Design details==
===Functionality===
The Point-Defense Gun functions much like the CIWS designs created during the 20th Century, firing 50mm projectiles. Unlike Archer missiles and the MAC weapon systems mounted on capital ships, the Point-Defense Guns are not used to engage Covenant capital ships in ship-to-ship combat (The only known case is in Halo: Reach level Long Night Of Solace), but is instead meant to take out smaller threats like Seraph fightersHalo: The Fall of Reach, page 272 or boarding craft to prevent (or at least lessen) the damage inflicted on a warship.
Because human operators lack the reflexive responses necessary to operate the point-defense guns to maximum effect, the autocannons are computer controlled and, if an AI is available, control is diverted to it. "Smart" AI's seem better able to operate the Point-Defense Guns than standard computers and also lesser "dumb" AI's.
In Halo: Reach Point-Defense Guns can kill a player with a single shot if it hits the player.
===Operational history===
During the human occupation of Installation 04, the ODSTs that recaptured and secured the wreckage of from the Covenant managed to scavengeHalo: The Flood, page 137 several dual barreled 50mm turrets. The ODSTs utilised the scavenged defense weapons and used them as anti-air defensive emplacements at Alpha Base.
===Subvariants===
*M870 Rampart 50mm Point Defense Guns - lower and narrower in profile than the M910, it was mounted on Charon-class light frigates.https://blogs.halowaypoint.com/en-us/blogs/headlines/posts/the-halo-bulletin-101012-
*M965 Fortress Point Defense Guns - Prototype 70mm guns mounted onboard UNSC Infinity
*M910 point defense network - Used on UNSC Pillar of Autumn, Autumn-class heavy cruisers and Paris-class heavy frigates. 
==Gallery==
File:Point Defence Gun.jpg|A close-up of a point-defense gun.
File:Reach 3893592 Full-crop.jpg|A close-up of one of Pillar of Autumns point-defense guns in Halo: Reach.
File:Origins - Defensive Measure.png|A defending itself from the Covenant boarding crafts using its point defense guns.
File:Reach 9060575 Full.jpg|Shot of UNSC Savannahs point defense gun arrays.
File:Reach 3003793 Full.jpg|UNSC Savannahs point defense guns firing on the Covenant corvette Ardent Prayer
File:Point guns firing.jpg|Close-up of a UNSC frigate's point defense guns firing.
File:UNSC Savannah.jpg| using its point-defense guns against Ardent Prayer in Operation: UPPER CUT.
==Sources==
Category:UNSC Starship Armament