B2 Plasma-Assisted Service Rifle

Overview
The B2 Plasma-Assisted Service Rifle is the second instalment of the B-series firearms which became available for consumer sale in 2094, being chambered exclusively in the .950 TB (Tachibana) cartridge on base models. While it is an aged weapon, it is, indeed, a proven one - using a closed-bolt electrothermal-chemical configuration to fire its specialised projectile - in an exclusively semi-automatic configuration. Often referred to as the B2 PASR, or simply just the B2, this battle rifle accepts Tachibana 10, 15 or 30-round box magazines, alongside a port - which can be accessed by folding or removing the stock - for a lithium-tungsten battery to be replaced, providing the weapon with around 2500 shots before this battery has to be replaced.

Action
The B2 PASR's action is unique, but not unseen historically, utilising a lithium-tungsten battery to generate power for the weapon, which then converts that power into plasma. This plasma is used to ignite the .950 cartridge's propellant, resulting in an electrothermal-chemical layout. The weapon is also notably closed-bolt, and uses a gas piston/reloading mechanism.

Default Variants
One of the B2's main advantages is its sheer modularity, being marketed as a gun that can be converted into many different shapes and forms - some of which are already sold by Tachibana. These include the following:


 * B2C PASC - A shorter carbine variant of the original B2.
 * B2 SAW - A LMG variant of the B2, which maintains the previous systems, but instead allows for it to fire from a belt and in full auto.
 * B2 PADMR - A DMR variant of the B2, using the .950 TBR in place of the original .950 TB. Slightly more powerful, with better penetration and range.
 * B2.1 PAAMR - An anti-materiel sniper variant of the B2, using the 26mm TBAM cartridge. Significantly longer range, at up to 3.2km, and significantly better penetration and power. Marketed as the 'ultimate anti-armour rifle'.
 * B2 FAS - A completely remade variant of the B2, which throws away much of the design to allow for it to fire 10g shotgun shells in fully automatic. Uses a closed-bolt system in place of the original, and is adaptable to firing most 10 gauge rounds. Maintains the electrothermal-chemical setup.

Ammunition
The consequence of making such a specialised weapon is that it must have its own ammunition to accompany it. As a result, it uses the .950 Tachibana (24.1x65mm) cartridge - which was developed in parallel to the weapon - having a total mass of 238g, and strikes with a force of 54,700 J (39,823 ft/lbs). What the .950 cartridge lacks in penetrative capability, however, it seems to make up for in brute force - which it relies on to punch through/into its foes' armour, or cause internal damage through said armour. Its lack of penetration is what made it so compatible with special forces and security groups who operate on starships, however, as while it was capable of annihilating its foes, it would do little damage to the inside of a spacefaring vessel.

.950 TBR
A variant of the original .950 TB cartridge, the .950 TBR was produced based on the original with the intent to be used in the DMR variant of the B2 - the B2 PADMR - which featured a longer cartridge (24.1x72mm) and therefore much more of the high-quality propellant seen in the original variant. The primary difference seen with the TBR, however, was its increased ability to penetrate armour - striking both harder and deeper, at 57,100 J (42,109 ft/lbs).

26mm TBAM
Unlike the .950 TBR and .950 TB alike, the 26mm TBAM is a cartridge that is well-regarded for its armour penetrative capabilities, being considered an anti-materiel round. Striking at upwards of 83,500 J (61,578 ft/lbs), the 26mm TBAM was specially made for the anti-materiel cousin of the B2 PADMR, the B2.1 PAAMR. Unlike the previous cartridges, the TBAM contains a small explosive warhead - causing large explosions on impact, capable of wiping out closely grouped foes. However, the 26mm TBAM is illegal for usage on spacecraft due to its ability to damage the hull of some - specifically shuttlecraft.

OOC Notes
This weapon requires permission to be used. Please contact us in our discord to request permission to use this weapon.