Here's an idea I had recently. The Sword of Surtur entry does say that we have more advanced versions of all of our standard equipment, so I decided to give a whack at improved version of our standard Las weapons. While inferior to Impaler weapons, they are more than good enough against mook level Orks and Nids, and are around 40% cheaper. In terms of a stat line, they are essentially Bolters or Bolter+, powerful enough to be an improvement, but not enough to be a dire threat against other Petty Imperiums. The Lascannons are nowhere near as good as Neutron Cannons but are much cheaper. Considering that we still use the Lascannon, exports will be prohibited.
Advanced Laser Weapons
One of the medium grade prizes found amongst the treasures of the Sword of Surter was the schematics for a series of more advanced versions of the conventional Las weapons. While inferior in performance to the now common Impaler series of weapons, and dramatically inferior to the advanced Neutron weapons, they represented serious logistical benefits to less developed planets. Advanced versions of the common and Icarus patterns of Lascannon have also proven to be potent additions to the Trust's arsenals, and potentially threatening enough to prohibit export.
While significantly more expensive than the standard Las weapon, their performance is roughly on par or slightly superior to common patterns of Bolter. Compared to the available patterns of Impalers, they have significantly inferior armor penetration capability, but are almost 60% the cost. Requiring a similar level of technical base, the Advanced Lasers offer considerable advantages to planets that face large numbers of low quality infantry unit, such as the common Ork Boy or Tyranid Gaunt. Considering that those are the primary threats of the Valinor Sector, distribution amongst the surviving the Petty Imperiums is quite high. The heavier Lascannon patterns have been reserved for the use of the Imperial Trust and close allies, being overkill against the Greenskins and forces of the Hive Mind, but quite potent against the armored vehicles of humanity.
Adv Las Pistol: R 12", S4, AP 6, Pistol
Adv Lasgun: R 24", S4, AP 6, RF
Adv Lasrifle: R 30", S4, AP 6, RF
(Collimator): R 36", S6, AP 4, Heavy 2
Adv Multi Laser: R 36", S6, AP 5, Heavy 4
Adv Lascannon: R 48", S10, AP 2, Heavy 1
Adv Icarus Lascannon: R 96", S10, AP 2, Heavy 1, Skyfire, Interceptor