Davon Karr
Old Man Karr
Image Source: http://ciddozzo.deviantart.com/art/Tau-Weapon-Set-575947132(upper weapon)
Intent: Personal weapon for this character
Development Thread: No
Manufacturer: http://starwarsrp.net/topic/22293-arakyd-industries/
Model: LJ-73B
Affiliation: Mandalorians
Modularity: Yes, rangefinders and interface to different armours/platform systems
Production: Semi Unique (~100 left)
Material: Durasteel and duraplast
Classification: Concussion rifle, smart grenade launcher
Size: Handheld
Length: 950mm
Weight: 9kg
Ammunition Type: Power cell, grenades
Ammunition Capacity: 25 shots, 3 grenades
Effective Range: 350m concussion, 600m grenades
Rate of Fire: 1 per second
Special Features: Integrates with armour subsystems: range finder, HUD, scanners.
Primary Source: http://starwars.wikia.com/wiki/Concussion_rifle
This model of concussion rifle was sold not long before the Gulag plague kicked in. It features two long barels. The upper is part of a concussion rifle, the lower is a 20mm smart grenade launcher that electromagnetically accelerates the round.
It had a reputation for durability and combat effectiveness, but is let down by being on the bulky side and requiring regular maintenance. They found great popularity in the hands of mandalorians, who had no issue with taking great care of their primary weapon. Many found this effective for longer ranges for direct strikes that could penetrate armour and could not be blocked by a lightsaber, whilst also providing excellent suppression capabilities with the blast radius.
The concussion blast will detonate on impact. Longer and heavier than a typical concussion rifle, it fires a more coherent blast with a slightly longer distance than is typical. When the blast is detonated it can potentially damage anything within a 5m radius. Anything struck direction suffers a significant concussive shock that can be lethal.
The smart grenade will detonate at the range set by the rifle. Anywhere from 10m to the the maximum range. The range can be set through the controls in a mandalorian's armour. This is exceptionally useful as other rangefinders on the system, or distances provided by other scanners can be directly fed into the rifle. For example a soldier can detect the range of a group of enemies in cover, set this as the detonation distance and then fire over the enemy to cause them damage or keep them pinned.
On the downside this is a long and bulky weapon. It was often dropped as a squad weapon in favour of more significant ordnance, anti armour, or repeating weaponry. The electromagnetically fired grenade has quick a kick to it.
However it is very durable, so using as a bludgeoning weapon is perfectly viable. Low ammunition per power pack also counts against it. It's a greedy weapon and the power pack can be tricky to replace given the size of the weapon. It's generally recommended to keep one hand on the barrel grip, wedge against the shoulder and release the grip to change over. More than a few soldiers over the years have dropped the weapon when reloading. Frankly, at his age Davon gets quite tired lugging this thing around, but he's too stubborn to admit it.