Blaster Pistol.
Some weapons deal Stun damage instead of regular damage. In this case, the weapon deals damage as strain instead of wounds. This damage is still reduced by a target's soak. When weapons with a Stun setting are used to deal Stun damage, their range changes to short and cannot be increased.

Lightsaber.
Breach weapons ignore one point of armor(Defense) for every rating of Breach (meaning they also ignore 10 points of soak for every rating of Breach).
When activated, the attacker chooses one item openly wielded by the target (such as a weapon, shield, or item on a belt). That item is damaged one step: to minor if undamaged, from minor to moderate, or from moderate to major. If a weapon already suffering major damage is the target of a successful Sunder, it is destroyed.

Sunder requires 1 advantage to activate.

Wrist Blaster.
Noticing the weapon requires a Daunting (4 difficulty) Perception check.

Getting 3 disadvantages on a weapon check may cause it to burn the user for 3 wounds.