1. What is the means of propulsion of the monomolecular shards discharged by the Shard Pistol and Shredder (chemical combustion, electromagnetic, compressed air, etc)?
The mechanism of these spraying weapons is particularly relevant for purposed of stealth and detection (e.g., chem sniffer, electrical sense, etc.).
2. May a railgun utilize the Extended Magazine weapon accessory (EP, p. 342)?
The text states the extended magazine only applies to firearms and seekers, but there appears no in-game rationale that would prevent a railgun from using such an accessory. In fact, since railguns primarily rely on velocity to cause damage, the ammunition should theoretically be of lower mass and size, and the capacity of railgun magazines should be demonstrably larger. This is further supported by the fact that railgun magazine do not appear to contain the weapon’s power source or battery (See EP, pp. 336, 338)