Callamus pattern lasgun
The venerable lasgun is the most widely used weapon of the Imperiums premier military organization, the Astra Militarum, along with nearly every other militant branch of the empire. With it's sheer ubiquity and thousands of years of service, it is also one of the most varied weapons in the imperium. Almost every forgeworld and even some hive worlds has their own pattern, slight differences that set them apart from others in some way, yet most sharing many common traits due to the logistical demands of the Imperial Guard.
Of all these, the Callamus pattern is, overall, by far the youngest. In spite of this, it's use has become much more common since the relatively short time since it's inception, due in part to the meteoritic rise of the young Forgeworld's industrial capacity. It has already largely become standard issue in it's local area, finding it's way into the hands of most regiments heralding from the Karatus sector, and is slowly spreading to other parts of Segmentum Tempstus.
The other notable part of the Callamus pattern weapons is their high quality. A product of a uniquely skilled specialist in the secrets of laser technology, the Callamus pattern weapons generally sports longer range, higher energy efficiency and greater stopping power than most other patterns, and can also be divided into two categories: The Mark 1 and the Mark 2.
The Mark 1 were the earliest of the Callamus pattern lasguns produced, and were; outwardly at least; fairly similar to more well known patterns in design. The Mark 2 meanwhile was an improved version, sporting not much in the way of technical improvements for the laser itself, but far more in the realm of ergonomics and weapon design. As the second iteration of the pattern came about just as production was winding up to a large scale, it is far more common than the discontinued Mark 1.
The Callamus pattern, like a number of different lasgun patterns, is split into a number of different models designed for different roles, though sharing core similarities.
Models:
Callamus pattern Mk2 / Model A-
The standard version of the weapon, the Model A is meant to be a regular service rifle. Featuring the aforementioned features of the Callamus pattern, the higher performance, it is also one of the most comfortable weapons in service. While many generals would likely go so far as to criticize this, as comfort makes the soldier lax and lazy, the average rifleman would vehemently disagree with such an assertion. The Model A has space for attachment modules, like scopes, flashlights and underslung sub-weapons (usually a single-shot grenade launcher or shotgun).
Callamus pattern Mk2 / Heavy-
A slightly larger and heavier version of the Model A, the 'heavy' is designed to utilize a larger power pack (or if that is lacking, two regular power packs) and features a much higher rate of fire in exchange for it's larger weight and bulk. It's intended purpose is that of a squad support weapon, providing a high volume of fire for longer periods of time, and as such it somewhat less common than the Model A, though it is not unusual to see entire squads armed with the weapon when the opportunity presents itself.
Callamus pattern Mk2 / Carbine-
A shortened version of the regular model, the carbine is a shortened version of the standard rifle. Intended for close quarters and urban situations, it sacrifices quite a bit of range but retains the firepower of the Model A.
Callamus pattern Mk2 / Model S-CQ
The S-CQ is a mere modification of the carbine model, with one critical difference: The it's barrel has been heavily altered so as to produce a scattering of beams, instead of a single coherent one. While the range is reduced even further, it allows the wielder to blanket a hallway in las-beams, and increases chances of hitting even without proper aiming. This model also has a higher power draw per shot, reducing the 'ammunition' that each power pack provides.
Callamus pattern Mk2 / Pistol
A simple, ergonomic handgun, of which there is little of great interest to say.
Callamus pattern Mk2 / Pistol-H
The H-model pistol however, is less standard. Essentially a much larger and bulkier version of the pistol. Built to accommodate a rifle scale power-pack, it is quite hefty, and possesses improved range over the regular model. Most notable however is the firepower of the weapon, which far exceeds that of a laspistol or full sized lasgun, though it has nowhere near the range of the latter and is less energy efficient.
Callamus pattern Mk2 / Ultra-light
The Ultralight model of lasgun is the thought behind the carbine taken to the logical extreme. Very small with a high rate of fire, this model is severely lacking in both range and accuracy, unlike the carbine which still has some measure of these features. Still, the compact nature of the weapon means it can be very useful in close quarters conditions, and can easily be fired with one hand.
Callamus pattern Mk2 / Long
Essentially the long-las version of the Callamus pattern, the weapon is predictably possessed of extremely long range, high level of armor penetration and precision.
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